Oughtn't the water to have boiled by now?

Such things ought not to be allowed.

这种事应该禁止。

You really ought to quit smoking.

你真的应该把烟戒了。

He oughtn't to have been driving so fast.

他本不该把车开得那么快。

That ought to be enough potatoes for eight people.

那些土豆应该够八个人吃了。

We ought to be leaving now.

我们现在该动身了。

That ought to be enough food for the four of us.

这些食物应该够咱们四个人吃了。

You ought to be ashamed of yourself.

你应当感到羞耻。

They ought to have apologized (= but they didn't) .

他们本该道歉的。

The courts ought to treat black and white defendants in exactly the same way.

法庭应当对黑人和白人被告一视同仁。

The company ought to be making changes in its marketing strategy.

公司应该在营销策略上作出改变了。

Children ought to be able to read by the age of 7.

儿童7岁时应该识字了。

New technology ought to make this easier.

新技术应当能使这事变得容易些。

If he started out at nine, he ought to be here by now.

他如果九点出发，现在应该到这里了。

I ought to call Brian.

我应该给布赖恩打个电话。

You ought to have come to the meeting. It was interesting.

会议可有意思了，你真该参加。

Many people felt that America ought not to take part in the war.

许多人认为美国不应该加入这场战争。

They ought to win – they've trained hard enough.

他们应该能赢,他们训练得够刻苦的。

You were out enjoying yourself when you ought to have been studying.

应该学习的时候你却在外面玩。

This is delicious. You ought to try some.

这个菜很可口。你可得尝尝。

‘Ought I to write to say thank you? ’ ‘Yes, I think you ought (to). ’

“我应该写信致谢吗？”“对，我觉得你应该。”