He always puts on a long face.

他总是愁眉苦脸。

youdao

Jane put on a long face today.

Jane今天板着脸。

youdao

M: Yes, but why does she have such a long face?

M：看见了，可她为什么拉长脸？

youdao

Lincoln was a tall man with a long face,long arms and large hands.

VOA: special.2009.02.09

Here's one climbing out of the pool: First her face appeared, long and cadaverous, with a bandage-like bathing cap coming down almost to her eyes, and sharp teeth protruding from her mouth.

有一个女人从游泳池中出来了，首先是她的脸，修长,而惨白，如绷带般的泳帽从她的头部,耷拉到她的眼睛，锋利的牙齿从她的口中突出。

耶鲁公开课 - 1945年后的美国小说课程节选

For example, the bride may wear a long white dress and have a white veil over her face.

VOA: special.2010.08.09

President Clinton, whose cynicism never loses its power to astonish, put on a long face and, with that tone of sincerity that betokens his tendentiousness, lamented that the Comprehensive Test Ban Treaty had become tangled in politics.

CENTERFORSECURITYPOLICY: Center for Security Policy | Politics and the Test Ban Treaty, By George F. Will, Newsweek, 20 October 1999

John Kerry has a notably long face, even for him.

FORBES: Magazine Article

But, save for a sort of long face you'd expect when someone's dismissed for a low score, we seldom see any physical manifestation of psychological problems.

BBC: Bitter-sweet sympathy