1PHRASAL VERB 追查清楚;清查 If you chase up something that is needed or needs dealing with, you find it or find out what is being done about it. 追查清楚;清查
When I didn't hear from the suppliers or receive a refund, I chased the matter up. [VERB noun PREP.]
我既没收到供货商的消息,也没拿到退款,于是开始追查此事。
The authority can chase up the source of the pollution and demand that the owner clean it up. [VERBPREP. noun]
当局可以追查到污染的源头,责令业主负责清理。
2PHRASAL VERB 敦促;追着…索要 If you chase someone up, you look for them and find them because you want them to do something or give you something. 敦促;追着…索要 [Also VERB n PREPOSITION]
...the story of a man who comes to Hollywood to chase up a client who has defaulted on a debt. [VERBPREP. noun]