have to

The soup has to be boiled down.

这汤还须煮浓些。

The patient had an allergy to penicillin.

该患者对青霉。

She has to face the brutal reality.

她不得不去面对冷酷的现实。

There I have to disagree with you.

那一点上我不同意你的意。

I have to economize where I can.

省的地方我都得省。

The explorers had to undergo much suffering.

探险者不得不忍受很多困苦。

Besides English, he has to study German.

除了英语, 他还要学德语。

Their arguments were irresistible;I had to agree.

他们的论据很有说服力, 我也不得不同意。

The injured dog had to be destroyed.

这只受伤的狗要予以人道毁灭。

We had to pause frequently for breath.

我们不得不经常停下来喘口气。

We have to harry him for money.

我们不得不常常缠着他要钱。

In some shops you have to bargain.

一些商店中买东西要讲价。

We had to have the signature notarized.

我们得检验这个签名的真实性。

We have to reckon with many problems.

我们必须考虑到许多问题。

Tomorrow I have to weed the garden.

我明天得给花园除草。

We'll have to change the bulb again.

我们又得换个灯泡了。

We have to go back to camp now.

我们现该回营去了。

We had to accustom ourselves to cold weather.

我们必须使自己适应寒冷天气。

We had to abandon our abortive attempts.

我们的尝试没有成功，不得不放弃。

He had to choose between death and dishonour.

他必须死亡和屈辱之间作出选择。