a stretch of turbulent water in a river or the sea caused by one current flowing into or across another current
同义词：rip, riptide, tide rip, crosscurrent
actions counter to the main group activity
同义词：crosscurrent
countercurrent详细解释
coun.ter.cur.rent n.（名词）A current that flows in an opposite direction to the flow of another current.逆流，反向电流；逆电流：与另一水流或电流的流向相反的水流或电流 【引伸】 coun.tercur.rent adj.（形容词）coun.tercur.rently adv.（副词）
