It has no shape, no color and no weight.
它没有形状，没有颜色，没有重量。
A gas differs from solid in that it has no definite shape.
气体不同于固体是因为(就在于)它没有固定的形状。
A gas differs from a solid in that it has no definite shape.
气体不同于固体就在于它没有一定的形状。
A gas differs from a solid in that it has no definite shape.
气体不同于固体就在于它没有一定的形状。
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