flutter kick

基本解释

Encourage a simultaneous, fast flutter kick.
促进快速、同步的波动打腿；
A rapid swimming stroke consisting of alternating overarm strokes and a flutter kick.
自由式游泳以双臂呈圆形交替的动作与急速的双腿蹬踢形成的快速游泳法
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.
仰泳打腿应该是一个稳定的6次浅打腿，髋部发力，脚尖应该绷直，膝盖则需要在上打腿时轻微弯曲。
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两腿同时向上和向下运动。不允许采用交替式打腿。
a swimming stroke; arms are moved alternately overhead accompanied by a flutter kick.
一种游泳方式；胳膊在头顶交替变换并且伴着脚排击水面。

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