1·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。
2·Still, it’s difficult for Rosner to conceal his excitement over the fact that hackers are getting interested in his technology—and he admits that he actually has a machine shop in his own backyard.
当然，面对黑客们对他的技术着迷这一事实，他也着实难掩心中的激动---他承认实际上自己就有一家仪器商店。
3·Frank could hardly conceal his excitement, for he knew that he had made areal 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。⫳。
4·"Ha, ha. I knew it would be. " She could not conceal her excitement, laughing like a child.
“哈哈，我就知道是这样。”她掩饰不住兴奋，露出孩子般的笑容。