once
副词
定义 once 副词
time(次數)
- A2
A single occasion.
一次；一回
I tried skiing once, but I didn't enjoy it very much.
我曾經嘗試過滑雪，但不是很喜歡。
We get coffee together once a week.
我們每週一起喝一次咖啡。
She visits her parents once a year.
她每年去看望父母一次。
- B1
At a time in the past.
從前；曾經
This restaurant was once the best in town.
這家餐廳曾經是鎮上最好的。
I once dreamed of being an astronaut.
我曾經夢想成為一名太空人。
This area was once covered in dense forest.
這片地區曾經被茂密的森林覆蓋。
片语 once 副词
- once and for all
In a conclusive way that resolves an issue completely and permanently.
一勞永逸；徹底了結
• We need to settle this dispute once and for all to prevent future issues.
我們需要一勞永逸地解決這場爭端，以防止未來的問題。
- once or twice
A small number of times; a couple of times.
幾次
• I've seen him at the cafe once or twice.
我在咖啡廳見過他一兩次。
- for once
Used to indicate that something is happening which is unusual or not typical.
難得一次
• For once, he finished the report on time.
這一次，他按時完成了報告。
- just this once
Used to indicate that an action will be performed or a request will be granted only on the current occasion.
僅此一次
• I don't usually do this, but I'll make an exception just this once.
我通常不會這麼做，但這次我會破例一次。
- (every) once in a while
Occasionally; happening from time to time but not frequently.
偶爾；不頻繁地。
• We go downtown once in a while.
我們偶爾會去市中心。
- once more
one additional time; on one more occasion
再一次
• I would like to visit the campus once more before we depart.
我想在我們離開之前再參觀一次校園。
- once again
Indicates that something has happened several times before and is happening again.
再次；又一次
• The special effects in this movie once again were amazing.
這部電影的特效再一次令人驚嘆。
- the once
Refers to a single occasion or instance of something happening.
一次
• I've been to London the once, but I can't remember when I last went.
我去過倫敦一次，但我不記得上次是什麼時候去的。
连词
定义 once 连词
- B2
From the moment that something happens.
一旦；一…就…
Once you learn how to swim, you will find it very enjoyable.
一旦你學會游泳，你會發現它非常有趣。
Once you start reading this book, you won't be able to stop.
一旦你開始讀這本書，你就停不下來。
Once you have made your decision, don't change your mind.
一旦你做出決定，就不要改變主意。
片语 once 连词
- at once
Happening or done at the same time; immediately.
同時
• Everyone stopped working at once when the alarm went off.
警報響起時，所有人立即停止了工作。
成语
- all at once
Happening suddenly and unexpectedly.
突然
• I was reading when all at once, the lights went out.
我正在讀書，突然間燈就熄滅了。
- Once bitten, twice shy
This idiom describes a situation where a person becomes overly cautious or fearful of repeating an action due to a past unpleasant experience.
一朝被蛇咬，十年怕草繩
• After her first business failed, she became 'once bitten, twice shy' and never dared to try entrepreneurship again.
在她的第一次創業失敗後，她變得『一朝被蛇咬，十年怕草繩』，再也沒有勇氣嘗試創業了。
- once upon a time
Used at the beginning of children's stories to indicate a time long ago.
用於兒童故事的開頭，表示「很久以前」。
• Once upon a time, there was a beautiful princess living in a castle.
很久很久以前，有一位美麗的公主住在城堡裡。
- once bitten, twice shy
Describes the feeling of being hesitant or fearful to repeat an action due to a prior negative experience.
一朝被蛇咬，十年怕草繩
• She broke her leg the first time she went skiing, so she is very hesitant to go again; once bitten, twice shy.
她第一次滑雪時摔斷了腿，所以現在對再次滑雪非常猶豫；一朝被蛇咬，十年怕草繩。