1、launch

发射（火箭、导弹或卫星）

NASA plans to launch a satellite to study cosmic rays.

美国国家航空航天局计划发射一颗卫星上天，对宇宙射线进行研究。

A Delta II rocket was launched from Cape Canaveral early this morning.

今天一早，一枚“德尔塔”Ⅱ型火箭在卡纳维拉尔角发射升空。

开展（重大活动）；发起，发动（军事袭击等）

Heavy fighting has been going on after the guerrillas had launched their offensive.

游击队发起攻击后，激烈的战斗一直持续不断。

The police have launched an investigation into the incident.

警方已对该事件展开调查。

（在江河、湖泊和港口载人的）大型汽艇

The captain was on the deck of the launch, steadying the boat for the pilot.

船长站在汽艇甲板上为领航员保向。

We'll make a trip by launch to White Island.

我们将乘汽艇到怀特岛。

2、get off

免受惩罚；逃脱（严厉的）惩罚

He is likely to get off with a small fine.

他可能会逃脱严惩，仅仅罚一点钱了事。

出发；离开

At eight I said 'I'm getting off now.'

8点钟的时候，我说“我现在要出发了。”

把手拿开；别碰

I kept telling him to get off.

我不断地叫他把手拿开。

'Get off me!' I screamed.

“别碰我！”我尖叫道。