3 Could we change the time?
我們能不能換個時間?
Could we change the time? I'd like to go over some issues before the meeting. Do you think you can come an hour early?
我們能不能換個時間?我想在會前處理一些事情。您能否提前一小時過來?
Could we have the meeting at 1 o'clock instead of 2?
我們能把會議時間從兩點改到一點嗎?
4 Let me know when is convenient for you.
請告訴我您何時方便.
I think it is better if we could discuss it in person rather than via e-mail. Let me know when is convenient for you and we'll schedule a meeting.
我認為當面泰倫該問題比發送電子郵件更好。請告訴我您何時方便,以便我們約定見面的時間。