Here is a list of commonly used phrasal verbs with the word back, plus examples of how to use the phrasal verbs in everyday conversation.
下面是一个带有back这个词的常用短语动词的列表，以及如何在日常会话中使用短语动词的示例。
1. Answer back
1.顶嘴
Answering back is to reply to someone in an authority role in a rude argumentative style. For example a child answering back to his mother when told to clean his room.
回击是以粗鲁的论辩风格回答一个权威角色的人。例如，一个孩子在被要求打扫房间时，会对母亲顶嘴。
Timmy was a rude boy. He would always answer back at his parents. /When your boss asks you to do something, do it. Don’t answer back at him/her.
蒂米是个粗鲁的男孩。他总是对父母顶嘴。/当你的老板要求你做某事时，就去做。不要对他/她顶嘴。
2. Back somebody up
2.支持某人
to back somebody up means to provide them with support publically. In this same way, you can also back up a story, meaning that you support the story or validate it being true.
支持某人意味着公开地为他们提供支持。同样地，你也可以备份一个故事，这意味着你支持这个故事或者验证它是真的。
I didn’t take your sandwich. Scott can back me up because he was with me all day. /Do you remember that time you had to back Tony up when he got in a fight?
我没拿走你的三明治。斯科特可以支持我，因为他整天都在我身边。/你还记得那次托尼打架时你不得不支持他吗？
3. Back something up
3.备份一些东西
to back something up is a term often used in technology conversation. When you back something up, it means that you make a copy of it to protect yourself from loss.
备
份是技术对话中经常使用的一个术语。当你备份某个东西时，这意味着你要复制它来保护自己不受损失。
Here are ABX Services, we back our work up daily on Google Drive and internal servers. /Back up your phone regularly to protect yourself from losing your photos and contacts.
这里是ABX服务，我们每天在谷歌硬盘和内部服务器上备份我们的工作。/定期备份手机，以免丢失照片和联系人。
4. Back up
to Back up can also mean to move backward. It’s both used figuratively, such as moving backward in time or a conversation. And literally, in the case of taking a step backward.
后退也意味着向后退。这两个词都是比喻性的，比如在时间上向后移动或在谈话中。从字面上讲，在后退一步的情况下。
Wait, let’s back up for a minute. Did you say you were in Vegas last weekend? /We’re standing too close to the water. Let’s back up because I don’t want to get wet.
等等，我们退后一分钟。你说你上周末在维加斯吗？/我们站得离水太近了。我们后退，因为我不想淋湿。
5. Back down
5.退缩
to back down means to give up or a fight/argument. Or, to let go of something you’re defending in a fight/argument.
后退意味着放弃或打架/争吵。或者，放弃你在战斗/争论中所捍卫的东西。
If a hunter kills the Alpha male, the rest of the lions will back down from a fight. /Animal rights are important. I will never back down in my struggle to protect the rights of field mice.
如果一个猎人杀死了大公狮，其余的狮子就会退出战斗。/动物权利很重要。在保护田鼠权利的斗争中，我决不会退缩。
6. Back into
倒车
the phrasal verb back into is most commonly used when talking about driving a car. It means to move backward into a space (such as a garage) or to move backward and hitting an object.
短语动词back into在谈论开车时最常用。它意味着向后移动到一个空间（如车库）或向后移动并撞到一个物体。
I’m so sorry for backing into your mailbox. I didn’t see it there. /Some people rather backing into parking spots because it’s easier to get out.
我很抱歉打翻了你的邮箱。我在那里没看到。/有些人宁愿倒车进入停车场，因为这样更容易下车。
7. Back onto
when one thing backs onto another thing, it means that they connect to each other from their back side. We often use the phrase back onto when talking about property.
当一个物体回到另一个物体上时，意味着它们从背面互相连接。我们在谈论财产的时候经常使用这个短语。
The farm backs onto a beautiful lake which is where the cows go to drink. /My childhood home backed onto a park where I played every day.
农场背靠着一个美丽的湖，那是奶牛们去喝水的地方。/我童年的家背靠着一个公园，我每天都在那里玩耍。
8. Back out
离开；退出
to back out means to leave or quit. It’s both used in real terms, like backing out of a room. Or as a way to explain an action taken. It’s also associated with literally moving backward.
退出意味着离开或退出。这两个词都用在实词上，比如从房间里退出来。或者用来解释所采取的行动。它还与向后移动有关。
Gustave has backed out of the 100-meter race after breaking his leg last week. /Nearly a quarter of all accidents in America happen when backing out of the driveway.