1.begin to 开始

The horns of some deer begin to shed.
有些鹿开始换角了。

But, when you are ready, begin to let people back into your life.
但是，当你准备好了，就开始让人们重新进入你的生命。

2.sink into 陷入

I go back to them myself every few years, just to sink into their worlds, which are endlessly informative, stimulating, and convincing.
我隔几年就会把它们重新阅读一遍， 为的就是沉浸到他们的世界中去，从那里汲取广博知识，鼓舞和信心。

But first impressions can be misleading, and if Yemen were to sink into a state of anarchy the implications for the Gulf region and beyond would be profound.
但是第一印象或被误导，一旦也门陷入无政府状态，对海湾及其它地区的带来的连锁影响将极为深远。
3.pull down 摧毁，推翻；拉下来

Richard,can you pull down your pants?
理查德，你能脱下你的裤子吗？

It holds 2.6 trillion of foreign-exchange reserves. Why should it pull down the system that has served it so well?
她拥有2.6万亿美金外汇储备，怎么会推翻这个对她带来诸多好处的系统呢？