poker face

US /ˈpoʊkər feɪs/
UK /ˈpoʊkər feɪs/
"poker face" picture
1.

撲克臉, 面無表情

an impassive expression that hides one's true feelings or intentions

:
Despite the bad news, she maintained a perfect poker face.
儘管有壞消息,她仍然保持著完美的撲克臉
He tried to keep a poker face during the negotiation, but I could see his excitement.
他在談判中試圖保持撲克臉,但我能看出他的興奮。