poker face

详细解释:一本正经的面容, 面无表情的人

词型变化：

形容词:pokerfaced

英语解释：

名词 poker face:

a face without any interpretable expression (as that of a good poker player)

例句：

I never know whether Henry is pleased or annoyed; he has a real poker face.我从不知道亨利是高兴还是烦恼，他总是一本正经的样子。