Getting it be not sure happiness losing it be not sure pain.
得到的不一定幸福，失去的不一定心痛。
Now I am not sure I will be qualified to graduate next semester.
现在我不确定我是否有资格在下学期毕业。
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。
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。
One thing is for sure —it's not going to be easy.
有一点可以肯定—事情不会很容易。
I'm not sure I'll be any good but I'll have a bash.
我不敢保证我能有什么用，但我会试试。
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。
He ought, to be sure, to have read over his lesson again, but that, you know, he could not do.
他当然应该再复习一遍功课，但你知道，他做不到。
To be sure, the future is not all rosy.
当然，未来并不都是美好的。
In what direction, for he could not be sure that the children had been taken to the ship?
究竟往哪个方向走呢？因为他不能肯定孩子们是不是已经被带到船上去了。
切勿迟延。
Drive carefully and be sure not to have an accident.
你开车要小心，千万别闯祸。
Be sure not to become conceited.
切切不可骄傲。
We can never be sure that they are not parodistic.
我们永远无法确定这些是不是一种戏仿。
Not sure what those priorities should be?
不确定这些优先级应该是什么？
But what I would say is that we should not be comfortably sure of anything.
但是我最终想要表达的是我们都不可能完全确定任何事情。
I'm not sure when, but it will be soon.
我虽然现在还不确定具体时间，但是快了。
And you may not be sure that you will get the money back.
你也可能不确定是否能捞回本钱。
You'll be sure not to foul, and you certainly ought to jump far enough to qualify.
你肯定不会犯规，而且足可以跳进决赛。
"Take time to be sure, but be sure not to take too much time." - anonymous.
花点时间来确定，但(我)确信不会花费很多时间。
Here is where you can finally introduce your solution. (Be sure not to introduce it too soon!)
在这里你可以开始介绍你的解决方案(不要介绍得太快)。
They could not always be sure of that.
他们也许并非总是有把握这样看的。
Be sure your company is not at risk in this area.
确保您的公司不在这个方面面临任何风险。
To be honest, I'm not really sure what this means.
诚实地说，我不是很肯定这意味着什么。
Then — I'm not sure. That must be when I shot him.
然后——我不太确定，我应该是开枪打中了他。
After this week, Mr Cameron might not be quite so sure.
这周过去之后，卡梅伦可能就不这么肯定了。
Now to be sure, progress is not apparent everywhere on the continent.
毫无疑问，非洲大陆并非到处都可以明显地看到进步。
Last but not least, be sure to choose the right products for yourself.
最后，也是很重要的一点，确保你选择了适合你的产品。
Last but not least, be sure to choose the right products for yourself.
最后，也是很重要的一点，确保你选择了适合你的产品。
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