Fuse the interfacing to both halves of the under collar, stitch the center back seam. Trim and press flat.

把衬布粘合到两块半片的领里上。缉缝后中缝，修剪并熨平。

youdao

youdao

She hid her face under the collar of his jacket and started to cry.

她把脸埋在他的外套领子下哭了起来。

《柯林斯英汉双解大词典》

But he got hot under the collar when someone took his radio.

VOA: special.2009.12.06

We say he is hot under the collar.

VOA: special.2009.12.06

Some of today's collar popping is meant to show off design details like piping or a contrasting fabric or color on or under a collar.

WSJ: The Return of the Popped Collar

The metaphor is strangely apt, but the story that's got AMs hot under the collar is quite different.

BBC: Six of the best from the Chief Whip

Does your electronic device have you a bit hot under the collar these days?

ENGADGET: NC State researcher finds more efficient way to cool devices, looks to cut costs too