It is necessary to have profound study on the fitness of Chinese female long distance swimmer since little research has been done in China.

由于我国目前对长距离游泳专项体能的研究相对较少，因而对我国女子长距离游泳专项体能的研究很有必要。

youdao

It took the swimmer some distance from the shore and left him there, out of his depth.

它带着游泳者离开岸游了一段距离，然后把他留在那里，束手无策。

youdao

Yes. In medley relays, each swimmer swims one stroke for the set distance; the order is back-stroke, breast-stroke, butterfly and freestyle.

是的，在混合泳接力赛中，每位运动员以一种姿势游一定距离，顺序依次是斧正游泳、蛙泳、蝶泳和自由泳。

youdao

He points out that a team of basketball players can win, at most, one gold for their country, while a swimmer can win two golds for swimming the same stroke the same distance twice: once individually and once as part of a relay team.

WSJ: 2012 London Olympics: Do Gold Medals Matter More Than Total Medals?