The origin of cocoonase of silkmoth, Bombyx mori was likely midgut, maxilla, or craw. However, it was absent of direct evidences whether the craw could secret cocoonase .

家蚕蛾溶茧酶可能来源于下颚、嗉囊和中肠，嗉囊是否具有分泌溶茧酶的能力至今缺乏直接的证据。

youdao

And that has always stuck in my craw -- i.e.

CNN: AllPolitics - Lake Hearing Transcript

Valdes had always wanted to open a quick-service restaurant, an idea that stuck in Bayless' craw.

FORBES: The Odd Couple

Difficult though it is to be guided by reversion to the mean, there is something that sticks in the craw about devoting so much of a portfolio to the best-performing asset in recent history.

ECONOMIST: Property��s strong run is not represented in portfolios