The brakes may also be operated by mechanical linkages from the foot pedal and handbrake lever. 制动器也可由与制动踏板和手制动器杆相连的机械联动装置操纵。
The elongated and very strong fourth toe of the hind foot serves as a lever to propel the animal along and bears the animal's weight when it stands. 袋鼠后脚的第4个脚趾长而有力,作为向前跳跃时的支撑点,还承担着自己站立时的体重。