not as...as

Sometimes I am not as brave as I should be

有时我表现得不够勇敢。

His Arabic was not as good as his English, but serviceable enough

他的阿拉伯语没有他的英语好，但是够用了。

The available pool of healthy manpower was not as large as military officials had expected

可用的健壮人力没有军官预计的那么多。

This idea is not as outlandish as it sounds.

这主意听上去荒诞不经，实际并非如此。

It was not as straightforward as we were led to believe.

这事并非如我们所误以为的那样简单。

Married life was not as idyllic as he had imagined.

婚姻生活并不像他想象的那么浪漫美好。

This phenomenon is not as outrageous as it seems.

这种现象并不像它看上去那样骇人。

At 20 years old he was not as agile as he is now.

20岁时他并不如现在这般矫健。

My election chances are not as important as the good name of the party.

党的声誉比我当选的机遇更重要。

Although not formally trained as an art historian, he is widely respected for his knowledge of the period.

虽然他不是科班出身的艺术史学家，但他对这一时期的知识却普遍为人尊重。

The profit was fair but not as big as they had hoped.

利润尚可，但不如原先希望的那么丰厚。

Things are maybe not as good as they should be

情况也许并没有情理之中那么好。

We talked quietly so as not to be overheard.

我们低声交谈，以免别人听到。

The pilots, however, were not as accurate as they should be.

然而飞行员并不像他们该达到的水平那样精准。

This pen is not as good as that one.

这支笔比那支笔差点儿。

He is not as friendless as he appeared to be.

他并不像看上去的那样孤独无助。

Victory was not as easy as the scoreline suggests.

胜利并不像最终比分显示的那么轻而易举。

I'm not as good as he is.; I can't compare with him.

我不如他。

She's not as daft as she looks.

她并不像看上去那么傻。

Older people should not be treated as second-class citizens.

不应把老年人当二等公民对待。

You are not as tall as he.

你没有他高。

She would be in bed by now, as like as not.

这工夫她很可能睡了。

The bridge is not as impressive as some guides would have you believe

这座大桥并不像有些导游说的那么雄伟。

This book is not as interesting as that one.

这本书没那本书有趣。

The book is not as morbid as it sounds

这本书并不像听起来那么可怕。

They're not as rich as all that.

他们并不是那么富有。

The problem is not as complicated as he imagined.

问题没他想像的那么复杂。

It's not as hard as I thought.

这没有我想象的那么困难。

(British English)I'm taking History as a subsidiary subject (= one that is not studied in as great depth as a main subject) .

我把历史课作为辅修科目。

My English is not as good as his.

我的英语学得不如他好。