Densifier
增密设备(氯化物处理)
🗣️ 情景例句
I keep in touch with my family regularly.
我定期和家里保持联系。
Say, do you smell something burning in the kitchen?
喏，你有没有闻到厨房里有烧焦的味道呀？
local epidemics of this disease could be created.
就可以使这种疾病在一个地区蔓延起来。