Spadaite
红硅镁石
🗣️ 情景例句
I know. I do.
我知道。我会的。
Let me see your passport, please.
请让我看看你的护照。
What is needed in the case of noise is a study of large numbers of people living under noisy conditions,
对于噪音问题，需要对大量生活在噪音中的人进行研究，