not 四级六级

I expect not.; I don't expect so.

我认为会。

Don't waste the flour; there isn't much.

要浪费面粉，没有多少了。

Don't scold the child.It's not his fault.

别责怪那孩子, 那是他的过错。

In conversational English “is not” often contracts to “isn’t”.

英语口语中is not常缩写为isn’t。

In conversational English “is not” often contracts to “isn't”.

口头英语中is not常缩写为isn't。

If the hen does not prate,she will not lay.

母下蛋。

I oughtn't to do that, it's not ethical.

我该做那件事，它是合乎道德的。

I didn't flunk but I didn't do too well.

我没有及格，但考得太好。

Motherhood doesn't suit her; she shouldn't have had children.

"她宜做母亲,她该生孩子。"

I don't care two pins whether she comes or not.

她来来, 我在乎。

Don’t look at me! I didn’t say a dicky bird.

别看我！我什么也没说。

What the eye does not see, the heart does not grieve over.

眼见, 心烦。

He didn’t flunk out,but his record isn’t so hot.

他没有及格,但成绩很一般。

"They didn't flunk out, but their records weren't so hot."

"他们勃没有及格,但成绩太好。"

Objective To investigate the immunofluoresce nt and immunoblotting features of paraneoplastic pemphigus(PNP).

目的研究副肿瘤性天疱疮患者的免疫学特点。

That doesn't mean I don't get to kibitz a lot.

当然这并意味着我就能发表意见了。

If the virus cannot replicate itself, it cannot cause illness.

如果病毒能变异，也就能够诱发疾病了。

That chair's not very robust; don't sit on it.

那把椅子太结实, 别坐它了。

Soames checked his instinctive "Not particular"--he would not chaffer with this alien.

索米斯抑制着那句“无所谓”的口头禅没有说--跟这个外国家伙犯着噜苏。

I wish you wouldn't mumble - I can't hear you clearly.

我希望你说话要含含糊糊 - 我听清你在讲什么。