Developing new type of vaccine is critical to control of animal disease.

The primary principle of establishing animal disease model is etiology-based induction principle.

而疾病动物模型建立的主要原则就是病因诱导原则.

If you don't listen to me, I've no time to waste breath on you!

你要是不愿意听我的, 我正没工夫跟你费吐沫玩!

It's a crime to waste money like that.

那样浪费金钱是一种罪过.

It was simple of her to waste her money on such trifles.

她把钱浪费在购买那种没用的玩意上,真是愚蠢.

As president I couldn't afford to waste energy on pretty disputes.

作为总裁,我经不起在一些细小的争执上浪费我的精力.

I resolved not to waste money on a hotel.

我决心不住酒店，以免浪费钱。

We must take care to preserve our national heritage.

我们必须注意保护自己的民族遗产.

We must act today in order to preserve tomorrow.

为了明天的生存,我们今天必须采取行动.

We need to preserve the forest.

我们需要保护森林。

Looking too long at someone may seem to be rude and aggressive.

太久的盯着某人看是不礼貌也是挑衅的.

He meant no disrespect by that remark, ie did not mean to be rude.

他的话并无不敬之意.

I did not intend to be rude.

我不是有意粗暴的.

Don't be rude to your teacher.

不要对老师无礼貌.

You don't want to be rude.

你不必粗暴.

Please forgive me -- I didn't mean to be rude.

请原谅我, 我不是有意无礼的.

" And I won't be rude to him, either.

" 而且我也决不会对他无礼.

" I will not be rude to him.

" 我决不对他粗暴无礼.

I had to make a conscious effort not to be rude to her.

我得刻意约束自己不要对她粗鲁.

He broke out into loud laughter.

他忽然哈哈大笑起来.

We heard an explosion of loud laughter.

我们听到一阵大笑.