You should memorize the words
背───Back;单词───word
He was desperately eager to be back after more than a week's absence from school.───他一个多星期没有到学校,回校之心甚切.
Come back to my pad.───回到我的住处.
He resolutely went back to the front.───他毅然决然地重返前线.
I'll set my watch back five minutes.───我要把我的表拨慢五分钟.
The seats have no back against which to lean.───这些座位都没有靠背可倚.
Join the blue wool on the end of the gold pattern and work the same stitches into the back.───在这金制图案边缘织上蓝毛线,在背面也用同样的方法来织.
I'll be right back.───我马上就回来。
Welcome back," she beamed.───欢迎回来,”她笑容满面地说。