A river crooking through the valley .

从山谷弯曲流过的一条河。

Namely the sports of the thigh , shank , foot and the crooking stretching sports of knee and ankle joint .

即大腿、小腿和脚部的运动以及膝关节和踝关节的屈伸运动。

The doctor told her to spend a few minutes crooking and uncrooking her fingers , several times a day , in order to keep the arthritic joints as supple as possible .

医生要她每天数次用几分钟时间弯曲和舒展手指，以尽量使发炎的关节保持柔软。