Slowly she threaded her way back through the moving mass of bodies.

她从人流中慢慢地挤了回来。

柯林斯例句

A glacier is a moving mass of snow and ice.

冰河是一大片会移动的雪和冰.

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Simulation results show that the flying states would be disturbed by the moving - mass control.

结果表明,变质量矩控制将使飞行器状态产生扰动.

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