开除留用 expulsion: n. 1.逐出,驱逐,开除。 2.排气。 the expulsion of sb. from school 某人被开除学籍。 the expulsion of air from the lungs 从肺中排出空气。 air expulsion: 呼气量assisted expulsion: 辅助排除expulsion bladder: 挤压囊expulsion charge: 抛射药下载手机词典可随时随地查词查翻译