不能肯定的

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。

If the mail is not digitally signed, you can't be sure where it comes from.

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。

If the mail is not digitally signed,you can't be sure where it came from.

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。

If the mail is not digitally signed,you cant be sure where it came from.

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。

It sounds dishonest, but I'm not sure it's such a terrible thing.

它听起来不诚实，但我不能肯定它的这种可怕的事情。

XmMHt%hJ I cannot say for sure if it was your visual illusion.

我不能肯定这是不是你的视错觉。

By the time that counsel has finished , this hypothetical figure has become so real that the court can almost picture what he was wearing ; and, most sinister of all , the witness who first cast doubt upon his existence is now wholly convinced of his reality. Truth would be better sewed if professional etiquette could be extended to require that the distinction between the hypothetical and the agreed (between "he could have been there" and "he was there") must not be blurred.

当该解释阐述完了之后，这个假想中的任务的形象就变得非常真实了以致于法庭几乎可以描绘出他的穿着，更可怕的是，先前还不能肯定这个人是否真正存在的证人们现在开始完全相信该人确实存在，如果职业规则能扩充性地要求假设和已达成一致的事实之间的区别必须得到澄清的话，那么事实将会更加的天衣无缝。

To them , he personified the absolute power

医生说他们不能肯定能救的了他的命。

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。