1.according to 通过
 

例句:They both played the game according to the rules.

他们俩都依章行事。

2.oil well 油井

例句:Deliverability and water intake capacity of oil well are very low.

油井产油能力和吸水能力都非常低。

3.work out 起作用；算出
 

例句:Things just didn't work out as planned.

事情根本没有按计划进行。

4.at a time 一次；每次
 

例句:Can I borrow two books at a time?

我可以一次借两本书吗？