A whirlpool is a small area in a river or the sea where the water is moving quickly round and round, so that objects floating near it are pulled into its centre.
N-COUNT
(很多不愉快或复杂事情构成的)漩涡
You can describe a situation in which a lot of unpleasant or complicated things are happening, and from which it is very difficult to escape, as a whirlpool .