He might get there in time, but I can't be sure.
他有可能准时到达，但我不敢肯定。
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。
Be sure you're recycling at home.
确保你在家会回收利用。
一定要保存好订单。
She had not known him long enough to be sure.
她认识他的时间还不够长，还不能肯定。
I should be sure you were a dream if you went.
如果你走了的话，我就会确定你是个梦。
"Be sure the cue is clear and available," he cautions.
他警告说：“要确保线索清晰可用。”
"I used to be sure that I would be a singer," said Lily.
“我曾经确信我会成为一名歌手。”莉莉说。
Be sure to add to it whenever you hear about a good book.
当你听到一本好书时，一定要把它加进去。
"But be sure the cue is clear and available," he cautions.
他警告说：“但要确保线索清晰可用。”
The idea "happiness", to be sure, will not sit still for easy definition.
可以肯定的是，“幸福”这个概念很难定义。
England must win this game to be sure of qualifying.
英格兰队必须拿下这场比赛才能确保获得资格。
He is intelligent, to be sure, but he's also very lazy.
他固然聪明，但也很懒。
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。
Whether or not we're successful, we can be sure that we did our best.
不管成功与否，我们确已尽了最大努力。
England must win this game to be sure of qualifying for the World Cup.
英格兰队必须拿下这场比赛才能确保获得世界杯的参赛资格。
That will be a queer thing, to be sure!
真是一件怪事，一点不错！
To be sure, the future is not all rosy.
当然，未来并不都是美好的。
"You may be sure of that," said the hair-comb.
“你可以相信我的话。”梳子说。
He's so very shy. He'd be sure to be offended.
他太害羞了。他会感觉被冒犯的。
"Aye, to be sure," Dickon answered, getting up.
“嗯，当然。”狄肯站起来回答。
Was it long enough to be sure it was a big cat?
这个时间足够确定那是一种大型猫科动物吗？
First, be sure to look up from your text or notes.
首先，一定要从你的课本或笔记中查找。
You may be sure they were very relieved to find Peter.
你可以相信，他们找到彼得后，都松了一口气。
I yelled back for him to be sure and listen to the tape.
我冲他喊了一声，让他确定一下，然后再听录音。
Every time you skip a question, be sure to mark it in time.
你每跳过一道试题，一定要及时标记。
If, by any chance, any thieves should come, be sure to bark!
如果，万一有贼来，一定要叫！
It may be that some have them already, but we cannot be sure.
也许有些人已经拿到了，但我们不能确定。
He had meant that she might be sure he would keep her secret.
他的意思是，她可以放心，他一点会保守她的秘密。
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