一定

Is it certain that they will win?

他们一定赢吗?

I’ll help you insofar as I can.

我一定尽力帮助你。

Do abolish this kind of bad evil.

一定要废除种恶劣习俗。

Please feel assured that we will abide by our promise.

请放心我们一定遵守诺言。

You must be careful crossing the road.

你过马路一定要当心。

See that the windows and doors are fastened.

留心一定要把门窗关牢。

Under such a regimen you'll certainly live long.

你样养生一定可以长。

The prisoner is sure to be condemned.

犯人一定被判。

You should necessarily go to the party.

你一定要参加。

The people of the afflicted areas are certain to need our help.

区人民一定需要我们的帮助。

I shall not have one atom of strength left.

我一定竭尽全力。

He contended that there must be life on Mars.

他声称火星上面一定有生物。

I conceived that there must be some difficulties.

我料想到一定有些困难。

It must be very costly to keep up a house like this.

维修么一幢房子一定很昂贵。

The two fleets were standing off from each other.

两舰队互相保持一定距离。

Oil is cracked by heating under pressure.

石油在一定压力下加热分解。

Those jewels must have cost a small fortune.

那些珠宝一定花了不少钱。

Make sure you don’t jumble everything up.

一定不要把东西全都弄乱了。

He is bound to succeed in his enterprise.

他在事业上一定成功。

Try to be objective as you listen to the testimony.

在听证词时一定要客观。