坐在地板上,向前伸直腿,脚趾朝向天花板。
Sit on the floor with your legs straight out in front of you, toes pointed toward the ceiling.
训练运用股四头肌来伸直腿的最好的方法之一是腿伸直坐在地板上。
One of the best ways to start training the quads to work in the straight-knee position is by sitting on the floor with your legs stretched out straight in front of you.
一位妇女坐在公园的长椅上,她向四周看了看,没有人,决定伸直腿,躺下来休息一下。
A woman sat down on a park bench, glanced around and decided to stretch out her legs on the seat and relax.
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