hollow face

例句：

1. 1. The man had a hollow face when he saw the news.
   当这个男人看到新闻时，他的脸上露出了空洞的表情。
2. 2.The old woman's hollow face showed her sadness.
   那位老妇人空洞的面庞显露出她的悲伤。
3. 3. The children were so excited that they couldn't help but have a hollow face.
   孩子们如此兴奋以至于他们忍不住露出了空洞的笑容。