catch up on的用法和樣例：
例句
- Just bung in some old bricks to fill up the hole.
只要填些舊磚就可以補上這個洞。 - I have to catch up on my work so I can't come out.
我要把工作補上，不能出去了。 - Staff must stay behind after hours to catch up on their work.
下班後工作人員需要留下來把工作趕完。 - Twenty minutes in the car ate up the distance between the two shipyards.
乘二十分鐘汽車，就趕完了兩座船廠之間的路程。
詞匯搭配
- catch up on 補上
