1、get down

使沮丧；使忧郁

At times when my work gets me down, I like to fantasize about being a farmer.

有时当工作让我沮丧时，我喜欢幻想自己是一个农场主。

俯身；跪下；趴下

She got down on her hands and knees on the floor.

她双手撑地跪在地上。

'Get down!' she yelled. 'Somebody's shooting!'

“趴下！”她大声喊道，“有人开枪！”

写下；记下

The idea has been going around in my head for quite a while and now I am getting it down on paper.

这个想法在我脑海里萦绕许久了，我现在就将它写在纸上。

2、protect

保护；防护

So, what can women do to protect themselves from heart disease?

那么，女性怎样做才能使自己不得心脏病呢？

A long thin wool coat and a purple headscarf protected her against the wind.

一件薄薄的羊毛长外套和一条紫色的头巾为她挡了风。

（保险单）为…提供保险

Many manufacturers have policies to protect themselves against blackmailers.

许多厂家都购买了保险，以防遭到敲诈。

3、pump

泵；抽水机；打气筒

pumps that circulate the fuel around in the engine...

使燃料在发动机内循环的泵

There was no water in the building, just a pump in the courtyard.

楼里没有水，只是在庭院里有个水泵。

抽吸；抽运；泵送

It's not enough to get rid of raw sewage by pumping it out to sea.

将未经处理的污水排入海中了事是不够的。

The money raised will be used to dig bore holes to pump water into the dried-up lake.

所筹资金将用于钻孔打水以抽水到干涸的湖中。