adjustable

The ergonomic office chair has an adjustable height and lumbar support system.

(Chinese) 这款符合人体工程学的办公椅具有可调节的高度和腰部支撑系统。

Mechanics use an adjustable wrench to tighten bolts of many different sizes.

(Chinese) 机械师使用活动扳手来拧紧许多不同尺寸的螺栓。