flutter kick

基本解释

Encourage a simultaneous, fast flutter kick.
促進快速、同步的波動打腿；
A rapid swimming stroke consisting of alternating overarm strokes and a flutter kick.
自由式遊泳以雙臂呈圓形交替的動作與急速的雙腿蹬踢形成的快速遊泳法
The backstroke kick is a steady six-beat flutter kick, with the power generating from the hips. The toes should be pointed and the knees bent only slightly on the upbeat.
仰泳打腿應該是一個穩定的6次淺打腿，髖部發力，腳尖應該繃直，膝蓋則需要在上打腿時輕微彎曲。
The dolphin kick features both legs moving up and down together. No flutter kicking is allowed.
海豚式打腿的特色是兩腿同時曏上和曏下運動。不允許採用交替式打腿。
a swimming stroke; arms are moved alternately overhead accompanied by a flutter kick.
一種遊泳方式；胳膊在頭頂交替變換竝且伴著腳排擊水麪。

a type of kick used in certain swimming strokes, such as the crawl, in which the legs are held straight and alternately moved up and down rapidly in the water