假设有人在桌子上摆一个铁球,那么这个铁球立刻就会朝着磁铁的方向滚动过去。
Suppose someone to place an iron ball on the table, then this ball will run straightway towards the magnet.
杠杆周期中的上摆活动使其成为必然。
这对新婚夫妇在喜宴上摆了一个三层的蛋糕。
The newly-married couple had a three-tiered wedding cake at the banquet.
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