Michael Phelps, who declared his retirement after the last Olympic Games, edged fellow Olympian Ryan Lochte on the 100 meter back stroke.

上届奥会后宣布退役尔·菲尔普斯在男子100米仰泳比赛中战胜奥冠军瑞安·罗切特夺冠。

Now, you're not allowed to use swimming strokes, and no breast stroke, no front crawl, no back stroke, you kind of just have to sort of push your way through.

不允用泳姿，没有蛙泳，没有自由泳，没有仰泳，只能通过某种方式推动前进。