Yabla Chinese

Yabla video uses of 隔绝
PM2.5 PM2.5
口罩 kǒuzhào
是 shì
指 zhǐ
能 néng
有效 yǒuxiào
隔绝 géjué
PM2.5 PM2.5
的 de
口罩 kǒuzhào
PM2.5 masks are those that effectively filter PM2.5,