当局可以追查到污染的源头,责令业主负责清理。
The police have been trying to chase up the dead man's sister, but they have no idea where she lives.警方一直在追寻死者的妹妹, 但他们不知道她住在哪里.
Mr. Buchhurst, the chief Accountant , has decided to chase up some bad debts.会计主任巴克赫斯特先生决定要追回几笔帐.
The teacher takes attendance every day to chase up absentees.那位老师每天点名以查出缺课者.
I was able to chase up the last unsold ticket to the opera for you.我能帮你赶快买到歌剧最后未出售的票.