趣英语 / pulleys例句

pulleys例句

a system of ropes and pulleys
绳索滑轮系统

Levers and pulleys are simple machines.
杠杆和滑轮是简单机械.

Among them were rickshaw pulleys, peddlers, policemen and servants.
这些人有的拉车,有的做小买卖, 有的当巡警,有的当仆人.

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