work-up是什么意思：n. 病情的檢查， 污跡

 

　　work-up的例句和用法

　　There was a smear on the door,where it had been rubbed up against when the paint was still wet.
　　門上有一塊污跡，那是油漆未干時被人碰擦了一些而造成的。