1.
Crouch down
曲膝弯腰以便少占地方，卷缩，弯腰低头
2.
Hold thigh behind knee and bring one knee up to chest. Hold 20 seconds.
单膝向胸部收缩。——平躺，双膝弯曲。膝盖上提，单膝靠近胸部，保持20秒。
3.
knee joint flexion and extension exerciser
膝关节弯曲伸长训练器
4.
bent his knees and knelt;
弯曲他的双膝跪下；
5.
knee-braced bracket
拐弯托座，膝形悬臂托架
6.
have legs that curve outward at the knees.
双腿在膝盖处向外弯曲。
7.
Having kneelike joints;able to bend at an abrupt angle.
膝状的有膝状关节的；能以较陡的斜度弯曲的
8.
Please come over here and bend over my knee."
请到这里来，弯下身体趴在我的膝上。”
9.
He bent down to her, his hands on his knees.
他双手扶膝，朝它弯下身去。
10.
the act of bending the knees in worship or reverence.
崇拜或者尊敬时弯曲双膝的动作。
11.
You see my knees aren't bent.
你们看，我的膝盖可一点儿没弯。
12.
Touch your toes without bending your knees.
用手够到你的脚趾, 膝盖别弯曲.
13.
The PE teacher says, "hold your hands up and bend your knees down."
体育老师说：举起你的手并弯下膝盖。
14.
bowleg:a leg having an outward curvature in the region of the knee.
弓形腿:在膝盖处外弯的腿。
15.
A leg having an outward curvature in the region of the knee.
弓形腿在膝盖处外弯的腿
16.
Can you bend down and touch your toes without bending your knees?
你能弯下腰、不屈膝摸着你的足趾吗?
17.
Try to bend down and touch your toes without bending your knees.
试着不屈膝而弯腰触摸脚趾。
18.
Can you bend down and to your toes without bending your knees?
你能弯下腰，不屈膝而碰到你的脚尖吗?