He'd never been in a class before and he was not even sure that he should have been teaching.

他以前從未教過課，甚至不確定自己該不該教課。

The president has never been sure which direction he wanted to go in on this issue.

總統一直都不確定自己想從哪個方面來着手處理該問題。

She was no longer sure how she felt about him.

她不再確定自己對他的感覺。

It is impossible to be sure about the value of land. [+ about]

土地的價值是無法確定的。

A lot of people think that it's better to pay for their education so that they can be sure of getting quality. [+ of]

許多人認爲最好是接受付費教育，這樣能確保教學質量。

It is the self-assurance of the new generation which makes them sure of their success.

年輕一代的自信讓他們對成功志在必得。

With over 80 beaches to choose from, you are sure to find a place to lay your towel.

有 80 多個海灘可供選擇，你一定能找到一處滿意的。

Anyone who goes food shopping without a list is sure to forget the things they really need.

任何人如果采購食物時沒列清單的話，肯定會忘了真正需要的東西。

Sharpe's leg and shoulder began to ache, a sure sign of rain.

夏普的腿和肩膀開始疼痛，這預示着肯定要下雨了。

She has a sure grasp of social issues such as literacy, poverty and child care.

她對掃盲、貧窮和兒童保育等社會問題都有深切的認識。

Be sure to read about how mozzarella is made, on page 65.

務必看看莫澤雷勒幹酪是怎麽制成的，在第 65 頁。

Be sure you get your daily quota of calcium.

要確保每天的鈣攝入量。

'He rang you?' — 'Sure. Last night.'.

“他給你打電話了？”—“沒錯。昨天晚上打的。”

'I'd like to be alone, O.K?' — 'Sure. O.K.'.

“我想一個人呆會兒，好嗎？”—“好的，沒問題。”

'We'll phone and you can make an appointment.' —'Sure. What time do you want to go?'

“我們會再打電話，你可以安排約見。”—“沒問題。你們想什麽時間去？”

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

“整個世界難道都瘋了嗎？”—“看上去的確如此，不是嗎。”

It sure is hot, he thought.

天的確太熱了，他想。

We found the English treacle pudding too good to resist. Sure enough, it was delicious.

我們覺得英國糖蜜布丁太好吃了，令人無法抗拒。的確非常美味。

I was in a shop when I saw a lady looking carefully at me. She'd recognised me, and sure enough, she came across.

我正在逛商店，突然看到一位女士在仔細地打量我。她認出了我，果不其然，她走了過來。

One thing's for sure, Astbury's vocal style hasn't changed much over the years.

有一點可以肯定，阿斯特伯裏的演唱風格多年來沒怎麽改變。

Even to this day we don't know what happened for sure.

即使到現在我們也不確定究竟發生了什麽。

Make sure that you follow the instructions carefully.

一定要認真按照操作指南來做。

He wants to make sure that schools are committed to providing alternative education.

他想確保學校盡力提供新型教育。

He looked in the bathroom to make sure that he was alone.

他往浴室裏看了看，確定就他一個人。

Before you cut the cloth, make sure that the pattern matches up on both edges.

在裁剪布料前要確保兩個邊緣的圖案對稱。

This proposal is by no means a sure thing.

這個提議絕不會理所當然地獲得通過。

'Be careful!' — 'Sure thing, Dad. So long.'

“要多加小心!”—“一定會的，爸爸。再見。”

Parents make the rules. To be sure, many of the rules are no longer appropriate today.

規矩由父母立下。誠然，其中有許多放在今天已不再合適了。

I'd never seen him like this, so sure of himself, so in command.

我從來沒見他如此自信滿滿、指揮自若。