1、weaken

削弱;减弱

The recession has weakened so many firms that many can no longer survive.

经济衰退使许多公司实力大损，不少难以为继。

The Prime Minister's opponents believe that her authority has been fatally weakened.

首相的反对者认为她的权威已经受到致命削弱。

(使)(决心)动摇

I looked at the list and felt my resolve weakening.

我看着名单，觉得自己的决心正在动摇。

Jennie weakened, and finally relented.

詹妮的态度有所缓和，最终软了下来。

使松动;使损坏

A bomb blast had weakened an area of brick on the back wall.

一颗炸弹爆炸使后墙的一片砖发生了松动。

Never dry underwear over direct heat; it will weaken the fabric.

不要直接加热烘干内衣，那样会损坏布料。

2、encounter

遇到，遭遇（问题、困难）

Every day of our lives we encounter stresses of one kind or another.

我们在每天的生活中会面临这样或那样的压力。

Environmental problems they found in Poland were among the worst they encountered.

他们在波兰发现的环境问题是他们遇到过的最严重的。

偶遇;邂逅

Did you encounter anyone in the building?

你在大楼里遇到谁了么？

Renata wrote him that she had encountered her long-estranged father.

雷娜塔写信告诉他说她碰到了分离多年的父亲。