The stone was lifted by means of a rope and pulley.
这块大石是用绳子和滑轮给吊起来的。
带轮；滑轮（pulley的复数）The stone was lifted by means of a rope and pulley.
这块大石是用绳子和滑轮给吊起来的。
The worker threaded the wire through the pulley.
工人把金属丝穿在滑轮
。
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