易混淆的单词： Knees

Keep your ankles , knees and hips in alignment .

踝、膝盖及髋保持在一条直线上。

Osteoarthritis of the knees presents a particularly serious problem .

膝关节炎似乎带来了很大的问题。

Eg. touch your toes without bending your knees .

用手够到你的脚趾，膝盖别弯曲。

She starts to rock his knees from side to side .

她开始摇动她的膝盖从一边摇到另一边。

Dunking in trash cans on my knees .

扣篮在垃圾桶上我的膝盖。