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Chapter 单元 :

Standard 4 四年级，Measurements 测量

Stone is a solid where it has fixed volume. When the stone put into the beaker that contains water, the water level in the beaker will rise. The rise in the level of the water is the volume of the stone.

石头是固体，它本身拥有容量。 当石头放入含水的烧杯，烧杯里的水位将上升。由于石头占去了水的空间，所以水位会上升。所上升的水位既是石头的容量。