1
by then
表示到某个时间点为止。
I will have finished the work by then.
到那时我将完成工作。
那时；当时
先理解核心含义，再看它在真实句子里的用法。
那时；当时
that time; that moment
I will have finished the work by then.
到那时我将完成工作。
那时；那个时刻
That time.
那个时间；那一刻
that time; that moment
We need to finish the report by Friday; until then, please avoid making any changes.
我们需要在周五前完成报告；在那之前，请避免做任何修改。
AI contextual example
She moved to Beijing in 2010, and since then she has worked as an English teacher.
她2010年搬到北京，自那以后她一直当英语老师。
AI contextual example
He broke his leg last year, and from then on he stopped playing football.
他去年摔断了腿，从那时起他就不再踢足球了。
AI contextual example
we will arrive before then
我们会在那之前到达
WordNet
表示到某个时间点为止。
I will have finished the work by then.
到那时我将完成工作。
表示从过去某个时间点到现在。
He has changed a lot since then.
自从那时起他变化很大。
表示从某个时间点开始并持续。
From then on, they became good friends.
从那时起，他们成了好朋友。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
到那时
By then, the party had already ended.
到那时，派对已经结束了。
从那时起
From then on, they became good friends.
从那时起，他们成了好朋友。
自那以后
She has changed a lot since then.
自那以后，她改变了很多。
直到那时
Until then, I had never seen such a beautiful sunset.
直到那时，我从未见过如此美丽的日落。
在那之前
Before then, he lived in a small village.
在那之前，他住在一个小村庄里。
在那之后
After then, things started to improve.
在那之后，情况开始好转。
当场，立即
He decided to quit his job then and there.
他当场决定辞职。
偶尔，有时
I like to visit my old friends now and then.
我喜欢偶尔拜访老朋友。
不过，另一方面
It might rain, then again it might not.
可能会下雨，不过也可能不会。
然后我看到了她的脸，现在我是一个信徒
From then on, he became a believer.
从那时起，他成了一个信徒。
然后一个都不剩了
By then, all the guests had left.
到那时，所有客人都已离开。
Use then naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
then音似‘等’，联想‘等那时’，记住表示当时的那一时刻。
[object Object]
These words all rhyme with 'then' (/ðɛn/) because they share the same /ɛn/ sound. Be careful: words like 'thin' (/θɪn/) and 'than' (/ðæn/) look similar but sound different.
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WORDNET.