1
verb + back
表示以某种方式回应或反击。
She fought back bravely.
她勇敢地反击。
回；回到原处；恢复原状
先理解核心含义，再看它在真实句子里的用法。
回；回到原处；恢复原状
To or in a previous condition or place.
She fought back bravely.
她勇敢地反击。
回到以前的状态或位置
To or in a previous condition or place.
朝相反方向地
In a direction opposite to that in which someone or something is facing or normally pointing.
反向地(物理或比喻)
In a direction opposite to the usual or desired direction of movement or progress, physically or figuratively.
向过去；在以前
Towards, into or in the past.
She smiled back at him.
她对他回以微笑。
He gave back the money he owed.
他归还了欠的钱。
I'll call you back later.
我稍后回电给你。
表示以某种方式回应或反击。
She fought back bravely.
她勇敢地反击。
表示归还或回报某物。
He paid the money back.
他把钱还了。
Not this
I will return back the book tomorrow.
Use this
I will return the book tomorrow.
动词 "return" 本身已包含 "back" 的含义，加上 "back" 是冗余错误。
Not this
Can you say it again? I didn't hear you.
Use this
Can you say it back? I didn't hear you.
副词 "back" 表示“回应地”，而 "again" 表示“再一次”，此处应使用 "back" 表达让对方重复自己的话。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
回去，返回
I want to go back home.
我想回家。
回来
She will come back tomorrow.
她明天会回来。
回到；取回
When did you get back from your trip?
你旅行什么时候回来的？
回头看；回顾
Don't look back in anger.
不要愤怒地回头看。
后退；搬回
Please move back from the edge.
请从边缘后退。
往回走；折返
The heavy rain forced us to turn back.
大雨迫使我们折返。
来回地；反复地
They went back and forth on the issue for hours.
他们在这个问题上反复讨论了好几个小时。
回到原点；从头再来
The project failed, so we're back to square one.
项目失败了，所以我们又回到了原点。
当年；在过去
Back in the day, people wrote letters by hand.
当年，人们用手写信。
我会回来的。（电影《终结者》台词）
Just wait here; I'll be back in a minute.
就在这儿等着，我一会儿就回来。
宝贝，回来吧。（乐队歌曲《Baby Come Back》歌词）
She asked him to come back, but he had already left.
她请求他回来，但他已经离开了。
Use back (adv.) naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 back 想成“背”：背在身后，所以副词 back 指“向后、回原处”。
语域：neutral 常见场景：日常对话、新闻报道、书面说明 作副词时，back 在口语和书面语中都常见；在非正式对话中尤其自然地表示“回到原处/恢复原状”“向后/倒退”或“在过去”，在正式文体中同样适用。使用时通常需结合动词或介词搭配来判断具体含义。
As an adverb, 'back' indicates return to a previous place, condition, or time. It often follows a verb of motion or change.
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.