to suck up; to pump up; to draw up; to absorb; to extract
to siphon off (profits, etc.); to exploit
to take up others' opinions, hopes, etc.
ポンプで水を吸い上げる。
To pump up water with a pump.
川の水をポンプで吸い上げた。
The river water was pumped up with a pump.
ポンプが地下水を吸い上げている。
The pump is drawing up groundwater.