1.
"If you want to borrow the car, be my guest."
如果你要借那辆车，请不要客气。
2.
Please help yourself to the fish.
请不要客气，吃鱼吧！
3.
When (you are) in need, don't hesitate to ask me for help.
需要时，请不必客气地找我帮忙。
4.
You are welcome. Please come in and make yourself comfortable.
你太客气了。请进来，不要拘束。
5.
Well, just so-so. This way, please. Make yourself at home.
嗯，马马虎虎吧。请这边来。不要客气，请随意。
6.
Help yourself without ceremony.
请随意吃（不必客气。）
7.
Don't inflate the life vest in the cabin and as soon as you leave the aircraft, inflate it by pulling down the red tab.
请不要在客舱内将救生衣充气！一离开飞机立即拉下小红头充气。
8.
Never mind. This dinner is on me.
不要紧，晚餐我请客。
9.
You do nothing of the sort. You be my guest.
你不要这样。我请客。
10.
If there is anything you want, please don't hesitate to ask me.
你要是需要甚么，请别客气问我要好了。
11.
"What are you lot doing here? Directing the fight? Just you wait, I'll report this to Mr. Wu!"
“你们叫打谁呀，回头吴先生来，我可要不客气请他发落
12.
"Let's be quite frank about it.
“诸位都不要太客气。
13.
He has threatened to take off the gloves.
他已威胁说要不客气了。
14.
I shall do you a mischief.
我可要对你不客气了。
15.
Keep your temper, not get angry,please.
请扼制住不要发脾气。
16.
OT: You're welcome, sir. Please enjoy your coffee.
不客气，先生。请享用您的咖啡。
17.
It's a pleasure. What time is it by your watch, please?
不客气。请问你的表现在几点了？
18.
"This food is a Sichuan speciality. Help yourself, please."
这是四川名菜，请大家不必客气。