動詞 catch up:

1. reach the point where one should be after a delay
2. learn belatedly; find out about something after it happened

1. Old age and infirmity had begun to catch up with him.
   他開始顯出年老體衰的樣子了。
2. 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。
3. She walked too slowly to catch up with us.
   她走得太慢，跟不上我們。
4. We'll do all we can to catch up the world level.
   我們會盡力來達到世界水平。
5. He walked too slowly to catch up with me.
   他走得太慢而不能跟上我。
6. We have done all we could to catch up with them.
   我們已經盡了一切可能來趕上他們。
7. I have to work hard to catch up with the other students.
   要想趕上其他同學，我得特別努力才行。
8. He shut himself away for a month to catch up on his academic work.
   他與世隔絕一個月，力圖把功課趕上去。