不能肯定

Whether there is a grain of truth to that belief or not, I can't say for sure.

无论是有一定道理的，以信仰与否，我不能肯定。

However, effects of technical progress and uncertainty exert ambiguous influences, which can either increase or decrease abatement costs.

技术进步和不确定性等的影响则不能肯定，可能会导致减排成本的上升或下降。

I'm not able to tell your the accurate time when i will come.

我不能肯定地告诉你我什么时候来。

I can't tell you accurately when I will arrive.

我不能肯定地告诉你我什么时候来。

Affectation is inevitably the mark of one not sure of himself.

避免的会暴露不能肯定自己的人。

I can't say if Affiliate Junktion will work for all.

我不能肯定的说 Affiliate Junktion 是否适合于所有的人。

Objects can be regarded not as things in themselves but as things posited or intended, by consciousness.

虽然我们不能肯定事物的独立存在，胡塞尔认为，无论我们实际经历过的事实是不是幻觉，我们可以确定的是他们是如何突然出现在我们意识当中的。

Today, I'm not sure how to describe Luanda. Certainly not "decaying".

而如今我不能肯定应该怎样描述罗安达，但当然不会是&逐渐腐烂&。

Unencrypted messages can be hijacked in transit and read or altered.if the mail is not digitally signed,you can't be sure where it came from.

未加密的信息可能在传输中被截获、偷看或窜改。如果邮件不是数字签名的，你就不能肯定邮件是从哪里来。。。

Unencrypted messages can be hijacked in transit and read or altered.if the mail is not digitally signed,you can't be sure where it came from.

未加密的信息可能在传输中被截获、偷看或窜改。如果邮件不是数字签名的，你就不能肯定邮件是从哪里来的。

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。