重点词组（二十六）

251.be essential to/for 必不可少

It will be essential to check how the money is being spent.

查清楚这笔钱将作何用途至关重要。

The keys are essential for opening the doors locked.

要打开那些已锁的门，钥匙是必不可少的。

252.even if/though 即使，虽然

Even if we cannot agree, we should maintain our contact.

即使我们不能取得一致，我们也要保持联系。

Even though it should rain tomorrow, we will continue our work.

即使明天下雨，我们也要继续工作。

253.every now and then 时而，偶尔

He came over his grandparents’ home every now and then.

他时不时会去他外公外婆家。

Every now and then you need a taste of your favorite childhood dish.

您偶尔会回忆起喜爱的那种童年的味道。

254.every other 所有其他的，每隔一个的

Place health above every other consideration. （所有其他的）

应把健康置于其他所有需要考虑的事情之上。

Now that their children have grown up, she joins Paddy in London every other week.（每隔一个的）

他们的孩子都长大了，她便每隔一周就到伦敦帕迪那里。

255.except for 除了...外

Your composition is good except for some overcolouring here and there.

你的作文很好，除了个别地方有些过分润色。

Except for tannin, they know nothing about wine.

除了单宁，他们对于葡萄酒什么都不知道。

256.exception to ...的例外

There is an exception to this rule.

这条规则有一个例外。

Tramps seem to be the only exception to this general rule.

对这条普遍性的规律来说，流浪者似乎是个仅有的例外。

257.expert at/in/on 善于

I am an expert at/in/on using your products and can write your user guide with my eyes closed.

我是使用贵公司产品方面的专家，闭着眼睛我都能替你写出用户指南来。

Everybody is an expert at/in/on giving advice on how you cannot do something.

每个人在对自己不能做的事情上，都是提意见的专家。

He has not press-agented himself as an expert on schooling.

他并没有把自己吹嘘成教学专家。

258.expose sb/sth to (sb/sth be exposed to) 暴露，接触

Do not expose it to the sun.

此物谨防日晒。

He is exposed to the ridicule of the public.

他受到公众的嘲弄。

259.exposure to sth 暴露

Continuous exposure to sound above 80 decibels(分贝) could be harmful.

持续暴露在强度高于80分贝的噪声中可能有害。

Exposure to lead is known to damage the brains of young children.

众所周知，接触铅对幼儿的大脑有害。

260.express one's satisfaction at/with  对...表示满意

The father expressed his satisfaction at/with the son’s achievement.

这个父亲对他儿子的成就表示很满意。