Schneiderite
硝铵、二硝基萘、树脂炸药, 镁浊沸石
🗣️ 情景例句
Hello, this is Wang Ming. May I speak to Gao Ling, please?
喂，我是王明，我可以和高玲通话吗？
Open your book,please.
请把书打开。
There is no doubt about it.
那是毫无疑问的。