Barylite
硅钡铍石
🗣️ 情景例句
Fine. Are you buying a house
好的。你们是要买房子呢？
To know one's self is true progress.
能有自知之明就是真正的进步。
I'm not sure. It was difficult to see. Wei Hua and Sun Meiying were both neck and neck.
我不敢肯定。很难说。魏华和孙美英不分上下。