泳姿swimming stroke（4）

The swimmer has set up a new world record for 100-meter-backstroke.

这个游泳运动员创造了100米仰泳的世界纪录。

The young swimmer has set up a new world record for the backstroke.

这位年轻的游泳健儿刷新了仰泳的世界纪录。

What's the difference between backstroke and breaststroke?

仰泳和蛙泳有什么区别？

The backstroke is done in a supine position with the alternate over-the-head strokes.

仰泳身体朝上，两臀经空中前移至肩前方入水。