他在游泳池里游泳。

He's swimming in a pool.

她在游泳，他在打篮球，你在跑步，我在踢足球。

She's swimming, he's playing basketball, you're running and I'm playing football.

他在游泳时突然抽筋了。

He suddenly got a cramp while swimming.

他在游泳池里一丝不挂。

He was naked in the swimming pool.

他在游泳后终于上岸了。

He finally land after swimming.

他在游泳比赛中选择了仰泳。

He chose the backstroke in the swimming competition.

他在游泳时突然发生了痉挛。

He suddenly had a convulsion while swimming.

他在游泳比赛中获得了第一名。

He won first place in the swimming contest.

他在游泳池里踏步水以保持漂浮。

He treads water to stay afloat in the pool.

他在游泳比赛中赢得了一枚奖牌。

He won a medal in the swimming competition.