Calvital
氢氧化钙
🗣️ 情景例句
Oh, not a chance!
啊 ，不可能。
This is a typewiter.
这是一台打字机。
If a shop assistant told him she had not heard of it, he would pretend to be considerably put out.
要是女售货员告诉他从未听说过这些东西，他会装出十分遗憾和不安的样子。