激流

激流	jī liú	torrent / torrential current / whitewater
激	jī	to arouse / to incite / to excite / to stimulate / sharp / fierce / violent
流	liú	to flow / to disseminate / to circulate or spread / to move or drift / to degenerate / to banish or send into exile / stream of water or sth resembling one / class, rate or grade