1.spend time with花时间

You need to spend time with other believers.
你需要花时间和其他信徒在一起。

While making your choice, ensure that you spend time with the sector teams and probe the depth of their knowledge andexperience.
做选择的时候，你要确保花上一些时间和私人股本公司的行业团队聊一聊，探询他们的知识和经验。

2.fall back后退

We must have something to fall back upon.
我们总得有点可以依靠的东西。

The oil price may not rise much further, and could even fall back.
石油价格可能不会持续走高，甚至会出现回落之势。

3.a string of一串的，一系列

His comments follow a string of high-profile attacks on climate change advocates.
他用一连串众所周知的事例来批评气候变化的主张。

I fire off a string of questions any university undergraduate would ask.
我问了一连串任何一个大学生都会提出的问题。
4.come out of由…产生，从…出来

Then why did you come out of their lair?
那你为什么从他们的藏身处出来？

Does it mean you cannot come out of these brackets?
这是否意味着你再不能从括号中挣脱而出？