•The new government has expelled all foreign diplomats.新政府驱逐了所有外国外交官。

•My brother was expelled from school for bad behaviour.我弟弟因为行为不当被学校开除了。

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•She took a deep breath, then expelled the air in short blasts.她深深吸了一口气，然后一下子把空气呼出来。

•When you breathe out, you expel air from your lungs.呼气的时候，把肺里的空气排出。