Steganogram
密码
🗣️ 情景例句
You give me the money and I'll give you the goods.
你付钱，我给货。
Yes, I got dressed and had breakfast.
是,我穿好衣服了并且吃了早餐。
below 20 per cent, its bactericidal action is negligible.
浓度低于20％时，杀菌能力基本上就不存在了。