not 四级六级

Don't become too confidential with strangers.

对陌生人能太信任。

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

我认为会。

Not arrogant with victory, not dishearten with setback.

例句〗胜利了要骄傲，失败了要～。

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

要粉，没有多少了。

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

口头英语中is not常缩写为isn't。

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

别责怪孩子, 是他的过错。

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

母鸡唠叨下蛋。

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

我件事，它是合乎道德的。

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

她来来, 我在乎。

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

"她宜母亲,她生孩子。"

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

我没有及格，但考得太好。

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

别看我！我什么也没说。

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

索米斯抑制着句“无所谓”的口头禅没有说--跟这个外国家伙犯着噜苏。

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。

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。

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

"他们勃没有及格,但成绩太好。"

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。

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

把椅子太结实, 别坐它了。

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。