With consummate skill he has set his trap with a hair spring to catch comfort and independence, and then, as he turned away, got his own leg into it.

他运用娴熟的技巧，把一根细弹簧设成了一个陷阱，想捕获安逸和自立，但是还没等转身，自己的一条腿就陷了进去。

youdao

Based on the biomechanics basics and the knowledge of the track and field, the essay argued on the sprint skill periods and the term of "leg drive", "the buffer after landing", and so on.

运用运动生物力学的基本原理，结合田径运动理论知识，对短跑的动作周期划分为“后蹬”、“着地缓冲”等问题进行了剖析。

youdao

The technique branch curriculum includes: The leg law, the skill at martial arts, the instrument branch, athletics branch, take as an elective the branch, the special branch, military branch seven.

术科课程包括：腿法、拳术、器械科、竞技科、选修科、特别科、军事科七门。

youdao