能流一个QQ给我吗？

能够啊，

就比如

could you leave your msg，能留下你的信息吗？

could you leave your number，能留下你的德律风吗？

或者你能够用could you give your number

or May I have your QQ number！

我也认为用

May have your QQ number, please?

会比力好

有多种表达办法：

May I have your QQ number?

Could you please advise your QQ number?

Would you please let me know your QQ number?

说委婉些 May I have your QQ number please? 我认为是如许说的