据悉海豚有时会救溺水的游泳者。Dolphins have sometimes been known to save drowning swimmers.即使最强壮的游泳者也会无助地被交叉水流冲走。Cross-currents can sweep the strongest swimmer helplessly away.游泳者从湖水中浮出来。The swimmer emerged from the lake....

“游泳者”的英语可以翻译为：swimmer，natator，[电影]Motsurave...