I hope I'm not disturbing you. *disturb“打扰(休息和工作)”。
I hope I'm not keeping you.
但愿没吵醒您。
I hope I didn't wake you up.
I hope I didn't wake you up. (但愿没吵醒您。)
No, you didn't. (没有，你没吵醒我。)
我有急事要找巴尔先生。
It is urgent I talk to Mr. Barr now.
I need to get in contact with Mr. Barr right away. *get in contact with……“和……取得联系”。
I need to talk to Mr. Barr immediately.
有关明天开会的事给您打电话。
I'm calling about tomorrow's meeting.
我给您回电话。
I'm returning your call.
I'm calling you back.