concentrate
/ˈkɒnsntreɪt/ (bre, ipa) · /ˈkɑːnsntreɪt/ (ame, ipa) · /ˈkän(t)-sən-ˌtrāt -ˌsen-/ (ame, mw) · /ˈkɒn.sən.treɪt/ (bre, ipa) · /ˈkɑːn.sən.treɪt/ (ame, ipa)
concentrate — 動詞
- concentratepresent simple I / you / we / they
- concentrateshe / she / it
- concentratedpast simple
- concentrating-ing form
1. to keep your mind fully on one particular activity, thought, or issue, not letti
集中；專注
將心思放在某一事物上
to keep your mind fully on one particular activity, thought, or issue, not letting it drift to unrelated things
Romi put on noise-cancelling headphones to concentrate on her math homework.
Romi 戴上降噪耳機，專心寫數學作業。
concentrate + on + noun
The team must concentrate their efforts on the most urgent problems first.
團隊必須把心力集中在最緊迫的問題上。
transitive: concentrate + efforts + on + noun
Christopher could not concentrate in the noisy office, so he asked to work from home.
Christopher 覺得在吵鬧的辦公室裡很難專心，所以申請在家工作。
If you concentrate your energy on one project at a time, you will produce better results.
如果你一次只把全部精力投入在一個專案上，成果會更好。
The doctor told Hassan to concentrate on his breathing during the medical exam.
醫生要 Hassan 在接受檢查時專注於自己的呼吸。
- focus
more precise and often suggests blocking out distractions deliberately; 'focus the camera' is a physical metaphor 'concentrate' doesn't share
- pay attention
more general and behavioural; describes the act of listening or watching, not necessarily deep mental engagement
- zoom in
informal, suggests narrowing from a broad view to one detail
- distract
to pull attention away from something
文法句型
concentrate + on + noun/gerund
concentrate + noun + on + noun
concentrate (no object)
用法筆記
Frequently used with the preposition 'on' to specify the object of attention. The transitive pattern (concentrate + noun + on) is common with words like 'efforts', 'energy', 'resources', and 'attention'.
常見錯誤
2. to bring or gather many people, items, or amounts to a shared location so they f
集中；聚集
使大量事物匯集在同一處
to bring or gather many people, items, or amounts to a shared location so they form a dense group
Most of the city's wealth is concentrated in a few wealthy neighborhoods near the coast.
這座城市的財富大多集中在海岸附近的少數富裕社區。
passive: be concentrated + in + location
The fighting has concentrated along the border between the two regions in recent weeks.
近幾週來，戰鬥集中在兩國邊境沿線。
intransitive: concentrate + along/around + location
Lakan concentrated all his savings into a single investment account for simplicity.
Lakan 把所有積蓄集中到一個投資帳戶裡，方便管理。
The factory's main operations are concentrated in three large buildings on the same industrial estate.
這家工廠的主要業務集中於同一工業區的三棟大型建築內。
During the winter months, the bird population concentrates around the lake where food is plentiful.
冬季期間，鳥群聚集在食物充足的湖邊。
- gather
more general; can describe people meeting or things being collected without implying density
- accumulate
suggests gradual collection over time rather than deliberate centralisation
- cluster
suggests close grouping in small areas, often naturally
文法句型
concentrate + noun + in/at/around + location
be concentrated + in/at/around + location
concentrate + adverb of place
用法筆記
Often used in the passive voice when describing where things are located. The intransitive form (things concentrate somewhere) is less common than the transitive or passive forms. Subject can be physical objects, people, wealth, power, or natural phenomena.
常見錯誤
3. to thicken a liquid by taking water out of it, typically through boiling or evap
濃縮
去除水分以增加濃度
to thicken a liquid by taking water out of it, typically through boiling or evaporation
Kenji concentrated the stock by letting it simmer for an hour to make the soup richer.
為了讓湯更濃郁，Kenji 用小火熬煮一小時來濃縮高湯。
transitive: concentrate + liquid + by boiling
The factory concentrates orange juice before shipping it to stores around the country.
這家工廠在將柳橙汁運送到全國各店鋪之前，會先加以濃縮。
Walid concentrated the chemical solution by heating it slowly until half the volume had evaporated.
Walid 慢慢加熱化學溶液，直到體積蒸發掉一半，從而將其濃縮。
The milk is concentrated at the plant so it takes up less space during transport.
牛奶在工廠經過濃縮處理，以便在運輸過程中佔用更少的空間。
Vikram concentrated the sauce until it was thick enough to coat a spoon.
Vikram 把醬汁濃縮到能在湯匙上掛住的稠度。
- condense
similar but can also apply to text; 'condensed milk' is a specific product name while 'concentrated milk' describes a process
- reduce
cooking term for boiling liquid down; 'reduce the sauce' is more common in recipes than 'concentrate the sauce'
- thicken
focuses on texture change, not necessarily water removal; can involve adding flour or starch
- dilute
to make a liquid weaker by adding water
- water down
informal synonym of dilute
文法句型
concentrate + liquid/food + by boiling/heating
be concentrated + for + purpose
用法筆記
Primarily used in cooking and industrial processing. The result is a 'concentrate' (noun). Unlike verb sense 1, this sense never takes a human subject's attention as its object — the object is always a liquid or substance.
常見錯誤
concentrate — 名詞
- concentratesingular
- concentratesplural
1. a liquid, especially a food or drink such as fruit juice or soup, that has had m
濃縮液
已去除大部分水分的食品液體
a liquid, especially a food or drink such as fruit juice or soup, that has had most of its water taken out so that it is stronger and takes up less space, and can later be mixed with water for use
Anna added water to the orange concentrate and stirred it to make juice.
Anna 在柳橙濃縮液裡加水攪拌，沖泡出一杯果汁。
food/drink concentrate + add water to use
The recipe calls for tomato concentrate rather than fresh tomatoes for a richer flavour.
食譜要求使用番茄濃縮醬，而非新鮮番茄，以獲得更濃郁的風味。
Campers carry juice concentrate in their packs because it weighs less than bottled drinks.
露營者常在背包裡攜帶果汁濃縮液，因為它比瓶裝飲料輕得多。
The store sells both ready-to-drink juice and frozen concentrate that you mix at home.
這家商店同時販售即飲果汁和需要在家沖泡的冷凍濃縮液。
文法句型
[flavour/taste] + concentrate
can/bottle/carton + of + concentrate
用法筆記
Usually uncountable ('some concentrate', 'a can of concentrate'). When countable, it refers to a specific type or brand ('a range of fruit concentrates'). Different from 'concentration', which means the amount of a substance in a mixture.
常見錯誤
2. a mineral-rich substance that remains after waste stone is separated from raw or
精礦
去除廢石後的礦物富集物
a mineral-rich substance that remains after waste stone is separated from raw ore during the first stage of processing
The mine ships copper concentrate to a smelter where the pure metal is extracted.
礦場將銅精礦運往冶煉廠，以提煉出純金屬。
mining: [metal] concentrate sent for smelting
Engineers developed a method to increase the purity of the iron concentrate at the site.
工程師開發出一種新方法，用於提高現場生產的鐵精礦純度。
The company's main product is zinc concentrate, which is sold to refineries across Asia.
該公司的主要產品是鋅精礦，銷售給亞洲各地的冶煉廠。
New equipment at the mine raised the quality of the lead concentrate to market standards.
礦場的新設備幫助提升鉛精礦的品質，使其達到市場標準。
The truck carried forty tons of copper concentrate from the mine to the port.
卡車載著四十噸銅精礦，從礦場開往港口。
- ore concentrate
fuller technical term; synonymous but longer
文法句型
[metal] + concentrate
用法筆記
Primarily a technical term in mining engineering. The metal name always comes first: 'copper concentrate', not 'concentrate copper'. The noun 'concentrate' in this sense is distinct from 'concentration', which in mining refers to the process rather than the product.