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An example of such a machine is the device used in old-fashioned Wells to hoist up the water bucket.
在老式水井中用来提上水桶的装置就是这类机械的一个例子。
youdao
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Give me a hoist (up), eg when climbing a wall.
往上推我一下(如爬墙时)。
youdao
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Give me a hoist (up), eg when climbing a wall.
往上推我一下(如爬墙时)。
youdao