be on a business trip
英 [bi ɒn ə ˈbɪznəs trɪp] 美 [bi ɑːn ə ˈbɪznəs trɪp]
出差
例句:
1.While I really want to attend the party, I'll be on a business trip.
虽然我很想参加,但是我得去出差。
2.No. as far as I can remember he was supposed to be on a business trip to Lisbon.
没有,我记得他应该是去里斯本出差了。