(noun.) structural member consisting of the horizontal part of a stair or step.
(noun.) the part (as of a wheel or shoe) that makes contact with the ground.
(noun.) the grooved surface of a pneumatic tire.
(verb.) brace (an archer's bow) by pressing the foot against the center.
(verb.) mate with; 'male birds tread the females'.
(verb.) crush as if by treading on; 'tread grapes to make wine'.
(verb.) tread or stomp heavily or roughly; 'The soldiers trampled across the fields'.
(verb.) apply (the tread) to a tire.
校对:蒂米
阿伊达整理