Abstract: Articular cartilage is a thin layer of low-friction, wear-resistant, load-bearing, soft hydrated tissue covering articulating bony ends in diarthrodial joints.

摘 ：软骨是覆盖于骨面一薄层低摩擦、耐磨损、负重水化组织。

The most common type of joint in the human body is the diarthrodial joint -- knuckles and shoulders are examples -- in which two bones come together in a capsule.

人体中最常见是运动，如指和等，处一个囊状物把两根骨头结合在一起。