吐痰用英语怎么说

吐痰用英语可以翻译为 "expectorate"。它来源于拉丁语的 "expectorare"，意思是 "排出，咳出"。例句如下：
"She expectorated into a tissue and threw it away." (她吐了一个纸巾，然后扔掉了。)
"He had a chronic cough and frequently expectorated phlegm." (他有慢性咳嗽，常常吐痰。)