名詞 tear gas:

1. a gas that makes the eyes fill with tears but does not damage them; used in dispersing crowds
   同義詞：teargas, lacrimator, lachrymator

動詞 tear gas:

1. attack with teargas; subject to teargas fumes
   同義詞：teargas

1. The police fired about50 tear gas grenades.
   警察發(fā)射了約50枚催淚彈。
2. A device or substance, such as tear gas, used to incapacitate individuals temporarily, as in riot control.
   致殘劑一種可使人暫時致殘的裝置或物質(zhì)，如平定暴亂時所用的催淚瓦斯