Schneiderite
硝铵、二硝基萘、树脂炸药, 镁浊沸石
🗣️ 情景例句
Are we scheduled to leave on time?
飞机准时起飞吗？
No pains, no gains.
不劳则无获。
Mrs.Sawyer stays at home every day.She does the housework.
索耶夫人每天呆在家里。她料理家务。