1、get back
恢復(fù)（原來的狀態(tài)）
Then life started to get back to normal.
隨后生活又恢復(fù)了正常。
I couldn't get back to sleep.
我再也睡不著了。
回到，重提（原來的話題）
It wasn't until we had sat down to eat that we got back to the subject of Tom Halliday.
我們直到坐下來吃飯時(shí)才又提起湯姆·哈利迪這個(gè)話題。
對(duì)…進(jìn)行報(bào)復(fù)
The divorce process should not be used as a means to get back at your former partner.
不應(yīng)該在辦理離婚手續(xù)上報(bào)復(fù)以前的伴侶。
I'm going to get you back so badly you'll never to be able to show your face again.
我要狠狠地還以顏色，讓你從此無臉見人。
2、go back
追溯到；回溯到
The feud with the Catholics goes back to the 11th century.
與天主教的夙怨可以追溯到11世紀(jì)。
Our association with him goes back four years.
我們同他的合作是從4年前開始的。
回到（過去）；回顧
If you go back to 1960, you'll find that very few jobs were being created.
如果回到1960年，你會(huì)發(fā)現(xiàn)工作機(jī)會(huì)寥寥無幾。