Imagine the typical depiction of weighing scales: two plates held by a common string suspended at a point halfway between them.
想像一下秤的典型写照：二个秤盘被一个共同的秤杆悬挂在一点上的两边。
Imagine the typical depiction of weighing scales: two plates held by a common string suspended at a point halfway between them.
想像一下秤的典型写照：二个秤盘被一个共同的秤杆悬挂在一点上的两边。
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