dead, 死的。pan, 俚语义，脸。

1. She put the letter on the desk in front of me, her face deadpan, not a flicker of a smile.

她把那封信放在我面前的桌子上，故意一脸严肃，没有一丝的笑容。

来自柯林斯例句

2. Some people don't catch his deadpan humor, that makes it even funnier.

有些人不能了解他那种无表情的幽默, 因此更有趣.

来自辞典例句

3. I gave him a deadpan look said, so much I walked upstairs.

我面无表情地瞪了他一下说道, 说完我就快步上楼去了.

来自互联网

4. When you come on stage, look like a deadpan.

你在舞台上面无表情, 像具僵尸.

来自互联网

5. Chandler: ( deadpan ) Yes, and we're very excited about it.

钱德勒: ( 面无表情 ) 是的, 我们相当兴奋.

来自互联网