不敢肯定的

In fact, I am not sure people today even know we are roasting coffee.

实际上，我不敢肯定今天人们还知不知道我们是自己烤咖啡的。

Off to dinner now where I can guarantee you I will not have another shot of Saki!

现在我要去吃饭了，我敢肯定的说这次我再也不会去惹米酒了！

You could never be sure what awaited on the other side of the door.

你永远不敢肯定在门里的那一边会有什么在等着你。

We weren't sure that you and your father were ready for any kind of social engagement yet

我们都不敢肯定你和你的父亲是否有心情参加社交活动了。

But if your individual stocks take a dive, you can't be confident of ever recouping the loss, no matter how long you wait.

但如果你持有的一只个股大幅下挫，无论你等多长时间，都不敢肯定它哪天会出现反弹。

Money replies, we still had studied without the system to the feeding habits of spadger, dare not affirm whether ought to eliminate spadger.

钱回答，我们对麻雀的食性还没有系统研究过，不敢肯定是否应当消灭麻雀。

You should use boost::signals::trackable as the base class of an event consumer (it is possible to implement the analogue in my library, but I'm not sure it is a good idea).

您应该使用提高：：信号：：可追踪作为一个基类事件消费者（有可能在我的图书馆实现了模拟，但我不敢肯定这是一个好主意）。

But I am not sure whether it is the best choice for me NOW.

但是，我现在不敢肯定这里是否是我最好的选择。

The truth is, even backers of stimulus can't be sure it will work.

事实是，即使是那些刺激方案的支持者也不敢肯定他们一定会起效。

But I'm not so sure shes fake.

但我不敢肯定畲族假的。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。