1.
Knees, toes, Knees, toes,
膝盖，脚趾，膝盖，脚趾，
2.
To go down or rest on one or both knees.
曲膝，下跪使单膝或双膝落下或着地
3.
To bend the knee or touch one knee to the floor or ground, as in worship.
屈单膝屈膝或一膝着地以示敬慕
4.
Front... knees up, knees up.
前踢， 膝盖抬高。
5.
walking shorts
百慕大(齐膝)短裤
6.
ankle, knee, elbow, etc joints
踝、 膝、 肘等关节
7.
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。
8.
Trousers extending to or just below the knee.
马裤长至膝盖或刚没膝盖的裤子
9.
The region of the leg that encloses and supports this joint.
膝部包围和支持膝关节的腿的部分
10.
A protective covering for the knee.
护膝用于保护膝盖的覆盖物
11.
To bend(the head or knee, for example)low, as in fear or humility.
低头，屈膝因恐惧或谦虚而低（头）或屈（膝）
12.
A subluxation occurs when the kneecap is pulled toward the outside of the knee.
当膝盖骨被拉到膝部外面发生半脱位。
13.
The Evaluation of the Knee MRI Accuracy under Arthroscopy;
膝关节MRI准确性的膝关节镜下评估
14.
The Experimental Research of OA Kneepad in Preventing and Treating Knee Osteoarthritis;
OA护膝防治膝骨性关节炎的实验研究
15.
For knee joint ache: The focus of the knee joint is on the both side of the knee, pointed out by binger in the following pictures.
六、膝关节疼痛患者：膝关节疼痛的病灶在膝盖骨的两侧，手指的地方。
16.
Clinical Study on Treatment of Osteoarthritis of Knee Healing with Xibi Soup and Shuxi Power
膝痹汤及舒膝散治疗膝关节退行性骨关节炎的疗效观察
17.
He abased himself before the general.
他在将军面前卑躬屈膝。
18.
He never crawls to his superiors.
他对上司从不卑躬屈膝。