water moving rapidly in a circle with a hollow in the centera boat sucked down into the vortex
a boat sucked down into the vortex
gulf, maelstrom, whirlpool
tourbillion(or tourbillon)eddy, swirl, whirl
in 1652
英语同义词词典收录了63618条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。