suck in

动词 suck in:

1. take up as if with a sponge
   同义词：take in, sop up, take up
2. attract by using an inexorable force, inducement, etc.
   同义词：suck
3. draw in as if by suction
   同义词：draw in

1. He sucked in air, then went under the water again.
   他深深吸了一口气又潜到水里。
2. He is busy sucking in with his immediate superior.
   他忙着巴结自己的顶头上司。