noun背,背部;后部,后面;背面;前后颠倒;背着某人,暗中
adverb在原处,回到原处;恢复原状;向后,在后面;回应,回答;归还;以前;反复来回
verb帮助,支持;(使)后退,倒退;退出,反悔;支持,证实;做备份
adjective后部的,后面的
nounthe part of a person or an animal that is between the neck and the bottom
nounthe part of something that is behind or furthest from the front
nounwith the back part where the front should be
nounwhen somebody is not there, so that they do not know about it
adverbin or to the place where somebody or something was before
adverbaway from the front
adverbas a way of returning or answering something
adverbin or into the past; ago
adverbfrom one place to another and back again, many times
verbto give help or support to somebody or something
verbto move backwards or to make something move backwards
verbto not do something that you promised or agreed to do
verbto say or show that something is true
verbto make a copy of information in your computer that you do not want to lose
adjectivefurthest from the front