but for

Either the server is overloaded or there was an error in a CGI script.

要不是服务器过载,要不是CGI脚本错误.

"Don't ask for it unless you want it, Peter."

“彼得，要不是真想要，就别要了。”

either ... or ...

1.不是...就是...;要么...要么...

3.Doesn't borrow money too often

3.不要老是借钱；

It is important for you not to take the ball before the bound.

要紧的是不要仓促行动。

"Read not Books alone, But men"

不要光是读书,还要识人

You're roommates.Are you very close?"

你们是同房，要好不要好？”

No, I don't want any money,@ said the old witch.

“不是，我不要钱，”老巫婆说。

Please don't shout. I'm not hard of hearing.

请不要喊叫,我不是聋子。

Don' t open the door no matter who knocks.

不要开门，不管是谁敲门。

" It doesn't matter, we're not among strangers!"

“说说不要紧！ 都不是外人

Can you stop nagging all the time?

不要老是唠叨行不行?

Don't scold him, it is not his fault.

不要骂他，这不是他的错。

I want 'yes' or 'no'@,

“我要你回答‘是’或者‘不是’，”

Are these paintings for sale?

这些画是不是要卖？

I mean to do it too.

(不单是说)是真要干的。

Is it about to crash?

是不是即将要崩溃？

Don't keep sponging from your father!His money won't last for ever.

不要老是向你父亲要钱！他的钱不是取之不尽的。