单词：backstroke

中文含义：仰泳

英语词性：noun

美式发音：/ˈbæk.stroʊk/

同义词：overhead stroke, back crawl

易混淆单词：breaststroke, butterfly stroke

双语例句：

1. He is skilled in the backstroke and won the championship last year. (他擅长仰泳，去年赢得了冠军。)

2. She struggled to learn the technique of the backstroke. (她费劲地学习仰泳技巧。)

Backstroke is a swimming stroke that involves lying flat on one’s back and moving one’s arms in a windmill-like motion to propel oneself through the water.