1.a series of 一系列的

例句:He rapped out a series of curt commands.
他大声发出了一连串简短的命令。

2.get out of 逃避；避免

例句:He wanted to get out of town and get in a good walk.
他想离开城市好好地去远足一番。

3.call on 访问；号召

例句:I'm going to call on one of my former classmates.
我要去看望我的一位老同学。

4.prime minister 首相；总理

例句:Economic issues featured very largely in the Prime Minister's speech.
首相的讲话中很大一部分涉及经济问题。