sure

1. ADJ If you are sure that something is true, you are certain that it is true. If you are not sure about something, you do not know for certain what the true situation is. 确定的[v-link ADJ]

He'd never been in a class before and he was not even sure that he should have been teaching. 他以前从未讲过课，他甚至不能确定自己是否应当从事教学。

The president has never been sure which direction he wanted to go in on this issue. 这位总统从未确定在这个问题上自己想要朝哪个方向走。

2. ADJ If someone is sure of getting something, they will definitely get it or they think they will definitely get it. 肯定的[v-link ADJ 'of' -ing/n]

A lot of people think that it's better to pay for their education so that they can be sure of getting quality. 很多人认为最好是自己掏钱受教育，为的是能肯定得到高品质的教育。

3. PHRASE If you say that something is sure to happen, you are emphasizing your belief that it will happen. 一定[强调]

With over 80 beaches to choose from, you are sure to find a place to lay your towel. 有八十多个海滩可供挑选，你一定能找到一个晒日光浴的地方。

4. ADJ Sure is used to emphasize that something such as a sign or ability is reliable or accurate. 可靠的; 准确的[ADJ n] [强调]

Sharpe's leg and shoulder began to ache, a sure sign of rain. 夏普的腿和肩开始痛了，这是要下雨的准确迹象。

5. ADJ If you tell someone to be sure to do something, you mean that they must not forget to do it. 务必的[v-link ADJ] [强调]

Be sure to read about how mozzarella is made, on page 65. 务必要阅读第65页上如何制作莫泽雷勒干酪的内容。

6. CONVENTION Sure is an informal way of saying "yes" or "all right." 当然[套语]

"Do you know where she lives?"—"Sure."

“你知道她住在哪儿吗？”—“当然啦！”

7. ADV You can use sure in order to emphasize what you are saying. 确实[非正式] [ADV before v]

"Has the whole world just gone crazy?"—"Sure looks that way, doesn't it."

“整个世界都疯了吗？”—“看起来确实如此，不是吗？”

8. PHRASE You say sure enough, especially when telling a story, to confirm that something was really true or was actually happening. (尤用于讲故事时) 果然

We found the apple pie pudding too good to resist. Sure enough, it was delicious. 我们觉得这块苹果馅饼布丁令人无法抗拒。果然，它很美味。

9. PHRASE If you say that something is for sure or that you know it for sure, you mean that it is definitely true. 千真万确

One thing's for sure, Manilow's vocal style hasn't changed much over the years. 有一点是千真万确的，马尼洛的演唱风格这些年来没有太大的变化。

10. PHRASE If you make sure that something is done, you take action so that it is done. 确保

Make sure that you follow the instructions carefully. 一定保证你认真遵循这些用法说明。

11. PHRASE If you make sure that something is the way that you want or expect it to be, you check that it is that way. 核实

He looked in the bathroom to make sure that he was alone. 他往那间浴室里看了看，以核实那就他一个人。

12. PHRASE If you are sure of yourself, you are very confident about your own abilities or opinions. 自信

I'd never seen him like this, so sure of himself, so in command. 我从未见过他像这样，如此自信，如此得心应手。