Can I use the bathroom, please?
请问我能用一下卫生间吗
Sure. It's over there.
当然 它在那边
Thank you.
谢谢你
I want to call my mum. Can I use your phone, please?
我想打电话给我妈妈 请问我能用你的电话吗
Yes. Go ahead.
可以 用吧