teargas/ˈtɪr ˌɡæs/名词催泪瓦斯,催泪性毒气/ˈtɪr ˌɡæs/动词催泪瓦斯,催泪性毒气Security forces clubbed and tear-gassed protesters.安全部队用棍棒和催泪瓦斯来对付抗议者。想跟读,去练习