1、threaten

威胁;恐吓

He said army officers had threatened to destroy the town.

他说陆军军官们曾威胁要摧毁那座小镇。

He tied her up and threatened her with a six-inch knife.

他把她捆起来，拿着一把 6 英寸长的刀子威胁她。

危害到;威胁到

The newcomers directly threaten the livelihood of the established workers.

新来的工人直接威胁到老工人的饭碗。

The unity of our society is threatened by troublesome and restless minorities.

我们社会的团结遭到了一小撮滋扰生事、不安分守己的群体的威胁。

(坏事)可能发生，将要发生

The fighting is threatening to turn into full-scale war.

这场战斗有可能会演变为全面的战争。

Plants must be covered with a leaf-mould or similarly protected if frost threatens.

如果霜冻来临，植物必须盖上腐叶土或用类似方法加以保护。

2、pick up

拿起；提起；拾起；捡起

He picked his cap up from the floor and stuck it back on his head.

他从地板上拾起帽子，重新戴在头上。

Ridley picked up a pencil and fiddled with it.

里德利拿起一支铅笔，不停地在手里摆弄着。

（通常指开车）接载，取走

We drove to the airport the next morning to pick up Susan.

我们第二天早晨开车去机场接苏姗。

She went over to her parents' house to pick up some clean clothes.

她去了趟父母家取些干净衣服。

（不费力地）获得，学会

Where did you pick up your English?

你在哪儿学的英语？

Young people are picking up ideas about good drugs and bad drugs.

年轻人正在形成毒品有好坏之分的观念。