Rayox
二氧化钛
🗣️ 情景例句
What about the baby?
那小宝宝怎么办？
Hi, Lucy. I'll take French and Economics.
你好，露西，我想选法语和经济。
Once we get down to the oil, it usually flows to the surface because great pressure,
一旦到达油层，石油就会由于地下巨大的压力流到地面上来，