不客氣英語口語是：you are welcome.
you是什麼意思：
pron. 你，您；你們，您們；各位，大家
welcome是什麼意思：
v. 歡迎，款待，愉快的接受，迎接
n. 歡迎，迎接，接受；歡迎辭
adj. 受歡迎的，令人愉悦的，不受限制的
int. 歡迎
Welcome you to the fair.
歡迎您到交易會來。
Whomever you invite will be welcome.
你邀請的任何人都將受歡迎。
A constant guest is never welcome
常客令人厭
例句：
1、布魯斯：太好了。謝謝！李雷：不客氣。
Bruce ： That's great ． Thank you! Li Lei ： You are welcome ．
2、沒必要對他們這麼不客氣。
There's no need to be so unfriendly towards them.
3、醫生不客氣地簡單説了幾個字。
The doctor spoke in a brusque tone.
4、不客氣地説，我認為你在撒謊。
Not to put too fine a point on it, I think you are lying.
5、他被毫不客氣地推出了屋子，門砰的一聲當着他的面關上了。
He found himself pushed without ceremony out of the house and the door slammed in his face.
