You can use either "standard" push button or shaped button with region.
您可以使用“标准”按钮或与区域形状的按钮。
In the middle of their bodies on both the top and bottom, are button-shaped disks.
在牠们身体顶部和底部的中央，是钮扣状的吸盘。
In the middle of their bodies on both the top and bottom, are button-shaped disks.
在牠们身体顶部和底部的中央，是钮扣状的吸盘。
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