名词
中文翻译：滑轮
同义词：
['sling', 'pulley', 'winch']
例句：
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1.The pulley sheave is used to lift heavy objects.
滑轮用来提升重物。
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2.The winch was used to pull the car out of the ditch.
绞盘被用来把汽车从沟里拉出来。
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3.The sling was used to carry the heavy load across the river.
绳索被用来把沉重的负载渡过河流。