Vanalite
蛋黄钒铝石
🗣️ 情景例句
Good. Do you have any back or knee problems?
好。你的背部和膝关节有什么毛病吗
She feared the arrival of the bill-collector.
她害怕收帐人来。
Yes, the economy model is about 30% less.
是的，经济型的大约便宜30%。