1、proper
适宜的;合适的;适当的;恰当的
Two out of five people lack a proper job.
每五人中有两人没有正当的工作。
I always cook a proper evening meal.
我总是把晚餐做得很丰盛。
正确的;准确的;最合适的
The Supreme Court will ensure that the proper procedures have been followed.
最高法院将确保程序的履行合乎规范
He helped to put things in their proper place.
他帮忙把东西放置妥当。
得体的;合乎体统的;正派的
In those days it was not thought entirely proper for a woman to be on the stage.
那个时候,女性登台表演被认为不太得体。
It is right and proper to do this.
这么做很得体。
2、go back
追溯到;回溯到
The feud with the Catholics goes back to the 11th century.
与天主教的夙怨可以追溯到11世纪。
Our association with him goes back four years.
我们同他的合作是从4年前开始的。
回到(过去);回顾
If you go back to 1960, you'll find that very few jobs were being created.
如果回到1960年,你会发现工作机会寥寥无几。