poker-faced E面无表情的
Be Poker-faced正经八百
Killed be poker-faced打死一本正经
Poker-faced prime minister铁面宰相
expressionless poker-faced unmeaning无表情的
humorless nannyish poker-faced priggish一本正经的
ADJ（形容词） If you are poker-faced, you have a calm expression on your face that shows none of your thoughts or feelings. 面无表情的 [非正式]
His expressions varied from poker-faced to blank.
他的表情在不露声色与茫然之间变幻不定。