蝶泳

yī wèi dié yǒng yùn dòng yuán

一位蝶泳运动员

a butterfly swimmer

dié yǒng yú nián bèi liè rù zhèng shì bǐ sài xiàng mù

蝶泳于1958年被列入正式比赛项目。

The butterfly stroke had not accepted as a formal event until 1958.

dié yǒng huá bì liàn xí

蝶泳划臂练习

a butterfly stroke drill