Dentoidin
[医] 牙基质
🗣️ 情景例句
Grandpa helped me yesterday afternoon.
昨天下午祖父帮我的忙。
Would you please make my reservation to Chicago for tomorrow?
请帮我预订明天去芝加哥的座位好吗？
Frank could hardly conceal his excitement, for he knew that he had made a real discovery.
弗兰克几乎无法掩饰自己兴奋的心情，因为他明白自己发现了一件珍品。