alternate
/ˈɒl.tə.neɪt/ (bre, ipa) · /ˈɑːl.tɚ.neɪt/ (ame, ipa) · /US and Canadian ˈȯl-tər-nət also ˈal-; chiefly British ȯl-ˈtər-/ (ame, mw) · /ɔːlˈtɜːnət/ (bre, ipa) · /ˈɔːltərnət/ (ame, ipa) · /ˈɒl.tə.nət/ (bre, ipa) · /ˈɑːl.tɝː.nət/ (ame, ipa)
alternate — 動詞
1. to keep switching from one thing or state to another, then back again, in a stea
輪流交替
在兩種狀態或動作間反覆切換
to keep switching from one thing or state to another, then back again, in a steady, repeating pattern.
Renata alternated between laughing and crying as she read her grandmother's letter.
讀著奶奶的信,瑪雅一下笑、一下哭,情緒交替。
alternate between A and B
The weather alternates between heavy rain and bright sunshine in early April.
四月初的天氣大雨和晴天交替出現。
subject is a natural phenomenon
Sweet songs alternate with louder, faster numbers throughout the band's new album.
樂團新專輯裡,柔和的歌曲和節奏較快的歌曲交替出現。
On the long drive to Taipei, Leila and her sister alternated at the wheel every two hours.
在開往台北的長途路上,Leila 和姊姊每兩小時輪流開車。
During the meeting, Priya alternated between defending her plan and asking the team for help.
會議中,普麗雅一下捍衛自己的計畫、一下又向團隊求助,兩種態度交替出現。
文法句型
alternate between A and B
alternate with
用法筆記
Most often intransitive and followed by 'between' (with two items joined by 'and') or 'with' (one item paired with another). Distinguish from sense 2, which takes a direct object and means causing the switching.
常見錯誤
2. to deliberately arrange two items in turns, so that each takes its place again a
輪番安排
刻意把兩件事交替安排出現
to deliberately arrange two items in turns, so that each takes its place again and again in a regular, repeating sequence.
The chef alternates layers of pasta with cheese sauce when she builds her lasagne.
做千層麵時,主廚會把麵皮和起司醬交錯一層層疊上去。
alternate A with B for paired items
Coach Lin alternates short sprints and long jogs to keep his runners fresh.
林教練讓選手交替進行短跑和長跑,以保持體力。
alternate A and B for two activities
Farmers in the valley alternate corn and beans each season to protect the soil.
山谷裡的農夫每季輪流種玉米和豆子,藉此保護土壤。
The director alternated funny scenes with serious ones to keep the audience awake.
導演把搞笑和嚴肅的場景交錯安排,讓觀眾不會打瞌睡。
- rotate
stresses cycling through three or more items
- interleave
more technical, used for layers or data
文法句型
alternate A with B
alternate A and B
用法筆記
Subject is usually a person or organisation that controls the pattern. Pairs naturally with 'with' for one item plus its partner, and with 'and' for two items treated equally.
常見錯誤
alternate — 形容詞
1. describing two things that keep following each other in a steady pattern, so tha
交替的
兩物以一前一後的規律出現
describing two things that keep following each other in a steady pattern, so that one comes, then the other, then the first one returns.
The kitchen floor was laid in alternate squares of black and white tile.
廚房地板鋪著黑白相間、交替排列的方磚。
alternate + plural noun (visual pattern)
Bram felt alternate waves of pride and panic as he stepped onto the stage.
馬可斯走上舞台時,內心交替湧起驕傲和慌張。
alternate + abstract feelings
The flag has alternate stripes of red and white running across it.
那面旗幟上有紅白相間的交替橫條。
At the funeral, Reverend Smith led the crowd through alternate prayers and hymns for an hour.
在喪禮上,史密斯牧師帶領眾人交替進行禱告和聖歌,整整持續了一個小時。
- alternating
verbal form, often interchangeable in this sense
- interchanging
formal, less common
文法句型
alternate + plural noun
用法筆記
Used before a plural noun to describe a regular A-B-A-B sequence. Distinguish from sense 2 ('every second') and sense 3 ('substitute'); only this sense describes the back-and-forth pattern itself.
常見錯誤
2. describing a day, week, or other time period that comes once and then is skipped
每隔一個的
隔一天、一週才出現一次
describing a day, week, or other time period that comes once and then is skipped before coming again — for example, Monday, Wednesday, Friday, but not Tuesday or Thursday.
The yoga studio runs beginner classes on alternate Tuesdays throughout the autumn.
整個秋天裡,瑜伽教室每隔一個禮拜二開一次初學者班。
on alternate + day name (skip pattern)
Dr. Sven asks her patients to take the pills on alternate days, not every day.
田中醫師要求病人每隔一天才吃一次藥,不要天天吃。
alternate days = every second day
The two cousins share the cottage and use it on alternate weekends.
那兩位表兄妹共用這間小屋,每隔一個週末輪流去住。
Rubbish trucks come down our street on alternate Mondays during the summer.
夏天時,垃圾車每隔一個禮拜一才會來我們這條街收一次。
- every other
more informal, same meaning
- biweekly
only for two-week pattern, often ambiguous
- consecutive
describes days that follow without a gap
文法句型
on alternate + time noun
用法筆記
Almost always used with a plural time noun (days, weeks, Tuesdays). Distinguish from sense 1: sense 1 needs two contrasting items, while this sense is about skipping every other one in a single series.
常見錯誤
3. describing a second plan, route, or version that is kept ready, so you can switc
備用的
在原方案不能用時改用的另一個
describing a second plan, route, or version that is kept ready, so you can switch to it if your first choice stops working.
When the bridge closed, drivers had to take an alternate route through the hills.
橋封閉後,駕駛只能改走山裡的備用路線。
alternate + route (American usage)
The committee voted for the alternate plan after the original budget was rejected.
原本的預算被否決後,委員會投票通過了備用方案。
Imani saved an alternate version of her essay in case her laptop crashed again.
莉娜怕筆電又當機,所以另存了一份備用版的論文。
The pilot was given alternate landing instructions because of the storm over Denver.
因為丹佛上空有暴風雨,機長收到了改降的備用降落指示。
- alternative
preferred in British English for the same meaning
- backup
more informal, often a noun before another noun
- substitute
stresses replacement of one specific item
- primary
the first or main choice
文法句型
alternate + noun (plan, route, version)
用法筆記
This 'backup' meaning is mostly American. British speakers usually prefer 'alternative' here. Distinguish from sense 1 (back-and-forth) and sense 2 (every second day) — only this sense talks about a substitute.
常見錯誤
alternate — 名詞
1. a person who is officially chosen to step in and do someone's job, role, or duty
候補人員
正式指定可代替正選的人
a person who is officially chosen to step in and do someone's job, role, or duty if that first person cannot be there.
Two jurors fell ill, so the judge called in the alternates to finish the trial.
兩位陪審員生病了,法官只好叫候補陪審員上場把審判完成。
noun: alternate as a backup person
Leila served as an alternate on the school debate team for most of the spring.
整個春季,卡洛斯多半是學校辯論隊的候補成員。
serve as an alternate
The Olympic committee named three alternates in case any swimmer was injured before the final.
奧運委員會點名了三位替補選手,以防有人在決賽前受傷。
Each delegate brought along an alternate who could vote when the main member stepped out.
每位代表都帶了一位替補者,正選離席時可以幫忙投票。
- substitute
more general, used in sports and everyday contexts
- stand-in
informal, often for short-term replacement
- reserve
preferred in British sports contexts
文法句型
an alternate for someone
用法筆記
Mostly American English; British speakers usually say 'reserve', 'substitute', or 'stand-in'. Common in legal, sports, and committee contexts where formal backups are listed in advance.