他们先是看到我突出的右膝，因为沉重的土把我的头往下压到了两腿之间。
The first part of me that they spotted was my right knee 14 sticking up, because the weight of the dirt had pushed my head down between my legs.
向下压水将你上半身提起，但是导致你的腿入水更低，制造了许多额外阻力。
Pushing the water down lifts your front end up but pushes your legs down low into the water, creating lots of extra drag.
摆动腿蹬离地面后积极前摆对加快起跳腿的下压着板、减少水平速度损失、获得较大的腾起初速度有利。
Swinging leg should actively swing forward after taking off the board to lower horizontal speed loss and improve the jumping speed.
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