例句：

　　Luckily, I am a good swimmer.

　　幸好我是個(gè)游泳好手。

　　The swimmer emerged from the lake.

　　游泳者從湖水中浮出來。

　　He owed his survival to his strength as a swimmer.

　　他把自己幸免遇難歸功于自己會(huì)游泳。