Muscle that is controlled by one's conscious will, typically referring to skeletal or striated muscles.

describing an action done without conscious control or intention; nonvoluntary; unconscious

Muscles that cannot be controlled by the will but are regulated by the autonomic nervous system, such as those forming the walls of the internal organs; same as [[平滑肌|平滑肌|ping2 hua2 ji1]].

leisurely and free; carefree and at ease

to throw away things carelessly or without consideration; to dispose of items randomly