\ 口语：let me know when you are sure about the meeting time.书面语：Please tell me when you have confirmed the meeting time.这句话里面，使用IF不是很恰当，因为整个句子的意思其实是：当你确定好见面的时间以.
英语翻译 Although we did not in Guangdong seen above，I think next time if we can have the opportunity to meet with.When we welcome you to visit our factory。Mentioned in the letter when you prepare a time or.
英语翻译 Have you made the exact appointment with the girl？(Yes，we have made an appointment of)4 p.m.outside the door of restaurant.I would like to have dinner with her，but I am not sure which one is best.I want to watch a film with her.Can you give me a good suggestion on the movies？Although I have been waiting for her for a long time，she has not turned out，besides，with a powered-off phone.
