a tear shell

• 催泪弹

a tear shell的用法和样例：

例句

1. Police dispersed the protesters with tear gas.
   警察用催泪弹驱散了抗议者。
2. Finally, the police had to use tear gas and electric batons, before an angry crowd to disperse.
   最后警方不得不动用催泪弹和电警棍，才将愤怒的人群驱散。