I am sure your fears are unwarranted.

我肯定惧是无根据。

I make sure my kids come first.

我得确保我孩子们排在首位。

The prisoner is sure to be condemned.

这个犯人定会被判刑。

Make sure your luggage is properly labelled.

请务必把行李上标签贴好。

The news is sure to overset him.

这条消息必定会使他心神不安。

I wasn't sure how fast to go.

我不确定有多远。

He's not altogether sure what to do.

他全然不知该怎么。

She felt sure that their friendship would last.

她确信他们友谊会日久天长。

Make sure you don’t jumble everything up.

定不要把东西全都弄乱了。

"Are you sure Lambie will come back today?"

"确定小羊今天会回来吗?"

That's sure to be a real gas.

那实在是好玩事。

Make sure the posts are spaced evenly apart.

确保各哨岗之间距离相等。

I'm sure this whisky has been watered down.

我敢肯定这瓶威士忌掺过水了。

Make sure you wrap up in the cold wind.

冷风, 定要穿暖。

Make sure that the hook is fully screwed in.

看看钩子是否已完全旋进去了。

I made sure the other kids stopped snowballing Celia.

我设法让别孩子不再向西莉亚扔雪球了。

Inspector Bull was sure they would find their man.

布尔警官坚信他们会找到要抓男子。

He likes to be sure of his bodily comforts.

他注重物质上舒适。

Are you sure that your jewellery has clipped on?

肯定珠宝饰物夹牢了吗?

I'm sure there's a perfectly rational explanation.

我确信有完全合理解释。