单词CS gas
n.: 催泪性毒气（或瓦斯）
网络: 催泪弹；催泪瓦斯；瓦斯弹
催泪性毒气（或瓦斯）:
a gas that stings the eyes, producing tears and making it difficult to breathe. CS gas is sometimes used to control crowds.
After smashing the windows, one of the officers eventually put some CS gas inside, though "to what effect was not clear" he says.
打碎车窗后，其中一名警察最终把催泪瓦斯投入车内，尽管是否“能起作用尚不清楚”，他说。
In retaliation the police surged forward, cracking heads with batons, using pepper spray and CS gas, and sirens wailed all around.
作为反击，警察们冲上去，用警棍敲打着示威人群的头，用辣椒喷雾和CS气向人群中喷洒，警笛响个不停。