一类物质，大部分是合成的有机卤化物，能刺激眼睛黏膜引起疼痛和流泪。

Any of a group of substances, most often synthetic organic halogen compounds, that irritate the mucous membranes of the eyes, causing a stinging sensation and tears.

youdao

一类物质，大部分是合成的有机卤化物，能刺激眼睛黏膜引起疼痛和流泪。

Any of a group of substances, most often synthetic organic halogen compounds, that irritate the mucous membranes of the eyes, causing a stinging sensation and tears.

youdao