Underfilling
不[未充]满, 底层填料
🗣️ 情景例句
I was, indeed.
的确如此。
Fine clothes make the man.
人要衣装。
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。