1.
Have you finished with my book?
我的书你还用不用?
2.
Need I help you to pack your luggage?
用不用我帮你打行李？
3.
Are you going to use bath?
你还用不用洗澡间了？
4.
Shall we use blocks?
我们用不用起跑器？
5.
No, no, no, no, no. Please, please.
不 不 不 不 不用了 不用了。
6.
No, no. Please, go ahead.
不用 ，不用。你走吧。
7.
We must use the computer when its usage is required, but it is best that we do not turn to it when it is not necessary to do so.
该用电脑时必须用，不必用时最好不用。
8.
"Thanks a lot." "Don't mention it."
谢谢。――不用谢。
9.
'it shall not be in vain.
“不会不起作用的。
10.
No, you needn't take a bus. It's not far at all.
不，不用乘车。一点也不远。
11.
wash or launder by hand instead of with a machine.
不是用机器而是用手洗。
12.
It skills not.
这毫无用处, 不起作用。
13.
File handle reference is no longer available.
文件句柄引用不再可用。
14.
Never use Big word when a simple one will do.
能用小词，就不要用大词。
15.
use soap-flakes rather than a powder detergent
用皂片而不用洗涤粉.
16.
Try adding up this time instead of subtracting.
这次试用加法，不用减法。
17.
Please add up this time instead of subtracting.
这次请用加法，不用减法。
18.
Disable menu items when they are not applicable.
禁用不适用的菜单项。