bac
bac — 名詞
- bacsingular
- bacsplural
1. the final set of secondary-school exams in France and similar systems, used for
法國會考
法國高中畢業前的大型會考
the final set of secondary-school exams in France and similar systems, used for graduation and for applying to university
Beatriz spent the spring revising for the bac with her classmates in Lyon.
Beatriz 整個春天都和同學一起準備法國會考（bac）。
revise for the bac before final exams
After passing the bac, Ilan applied to study history at Sorbonne University.
通過 bac 之後，Ilan 申請到索邦大學讀歷史。
pass the bac before university application
Aylin's older cousin failed the bac once and took it again next year.
Aylin 的表哥第一次沒有通過 bac，隔年又重考一次。
French news channels discussed whether this year's bac papers were too hard.
法國新聞頻道都在討論今年的 bac 試題是不是太難。
Parents waited outside the school while Minho finished his morning bac paper.
家長們在校外等著 Minho 寫完早上的 bac 考卷。
- baccalaureate
the full formal name of the same exam
- school-leaving exam
a general term for this type of final exam in many countries
- A levels
a British equivalent in function, but not the same qualification
用法筆記
Usually appears with the article 'the' and with verbs such as take, pass, revise for, or sit. Outside France and similar education systems, writers often explain it or use the full word 'baccalaureate' on first mention.
常見錯誤
bac — 縮寫
1. a measure of how much alcohol is in a person's blood, especially when police, do
血液酒精濃度
血液中酒精所占的比例
a measure of how much alcohol is in a person's blood, especially when police, doctors, or courts need to check it
The officer told Christopher his BAC was above the legal limit.
警員告訴 Christopher，他的血液酒精濃度（BAC）已超過法定上限。
BAC reading in a drink-driving stop
At the hospital, Ingrid's BAC was tested after the car crash.
車禍後，醫院替 Ingrid 檢驗了 BAC。
medical test of BAC after an accident
The article explains how food can affect your BAC more slowly.
那篇文章解釋了為什麼進食後 BAC 上升得可能比較慢。
Police recorded a BAC of 0.09 after the late-night traffic stop.
那次深夜臨檢後，警方記錄到 0.09 的 BAC。
Romi waited an hour before driving, but her BAC stayed too high.
Romi 等了一個小時才開車，但她的 BAC 還是太高。
- blood alcohol concentration
the full formal expansion used in reports and laws
- blood alcohol content
an alternative full form with the same meaning
- alcohol level
a broader everyday phrase; less technical than BAC
文法句型
BAC + be + above/below the limit
check someone's BAC
BAC of + number
用法筆記
Usually appears in legal, police, or medical contexts and often follows numbers such as 0.05 or 0.08. In everyday speech, people may say 'alcohol level', but reports and laws usually use BAC.
常見錯誤
2. a large DNA carrier used in genetic research to keep long pieces of DNA inside b
BAC載體
基因研究中裝長段DNA的載體
a large DNA carrier used in genetic research to keep long pieces of DNA inside bacteria so they can be copied and studied
The lab stored the long DNA piece in a BAC before sequencing it.
實驗室先把那段長 DNA 放進 BAC載體，再進行定序。
store long DNA in a BAC
Amani learned that a BAC can carry more DNA than a plasmid.
Amani 學到 BAC載體比質體能攜帶更長的 DNA。
BAC compared with a plasmid
Researchers picked a BAC clone that contained the gene they needed.
研究人員挑出那個含有目標基因的 BAC clone。
The handbook says each BAC must be kept in living bacteria.
手冊寫著，每個 BAC 都必須保存在活細菌裡。
- bacterial artificial chromosome
the full scientific term expanded from BAC
- vector
a broader lab word for a DNA carrier; less specific than BAC
- clone
can refer to one BAC-containing DNA sample rather than the carrier type
文法句型
store DNA in a BAC
BAC clone
BAC library
用法筆記
Usually appears in genetics papers, lab notes, and method sections rather than general English. The term names the DNA carrier itself, while a 'BAC clone' is one specific DNA insert held in that carrier.