- n. 后面；背部；靠背；足球等的后衛；書報等的末尾
- vt. 支持；后退；背書；下賭注
- vi. 后退；背靠；倒退
- adv. 以前；向后地；來回地；上溯
- adj. 后面的；過去的；拖欠的
- n. (Back)人名；(西、英、德、法、瑞典、捷)巴克
詞組搭配
at someone's back
in pursuit or support someone
追求；支持（某人）
back and forth
to and fro
來回地
back in the day
in the past; some time ago
在過去，在以前
back in the day, he'd had one of the greatest minds I'd ever come across.
從前他曾是我所遇到過的最有頭腦的人之一。
someone's back is turned
someone's attention is elsewhere
某人的注意力在別處
he kissed her quickly, when the landlady's back was turned.
趁女房東注意別的地方的時候，他很快地吻了她一下。
the back of beyond
a very remote or inaccessible place
偏僻處
back o'Bourke
(Austral. informal)the outback
(澳，非正式)內地
the back of one's mind
used to express that something is in one's mind but is not consciously thought of or remembered
下意識里
she had a little nagging worry at the back her mind.
下意識里她還存有顧慮。
back to front
(Brit.)with the back at the front and the front at the back
(英)前后顛倒
the exhausts had been fitted back to front.
排氣管前后裝倒了。
a back-to-front baseball cap.
前后顛倒的棒球帽。
back water
reverse the action of the oars, causing a boat to slow down or stop
倒槳
back the wrong horse
make a wrong or inappropriate choice
下錯了賭注；做錯了選擇
behind someone's back
without a person's knowledge and in an unfair or dishonourable way
在某人背后，背著某人
Carla made fun of him behind his back.
卡拉在他背后取笑他。
get (或 put) someone's back up
make someone annoyed or angry
惹惱（或惹怒）某人
in back
(N. Amer.)at the back of something, especially a building
(北美)在后面（尤指建筑）
dad demolished an old shed in back of his barn.
父親拆掉了倉庫后面的一個舊棚。
know something like the back of one's hand
be entirely familiar with a place or route
（對地方或路線）了如指掌