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 要 ：关节软骨是覆盖于骨关节面一薄层低、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.

最常见关节是运动关节，如指关节和肩关节等，关节处一个囊状物把两根骨头结合在一起。