n.還擊；反手拍擊；仰泳
He can swim breaststroke, backstroke and crawl. 他會(huì)游蛙泳、仰泳和自由泳。
The young swimmer has set up a new world record for the backstroke. 這位年輕的游泳健兒刷新了仰泳的世界紀(jì)錄。
