ウィングナッツ
皮張りのかご
maize-husks
a chestnut-shell
穴ふさぎ
a stop-gap
the cuticle on fingernails
a nutshell
soft-shell clams
a set phrase―a conventional phrase―a stereotyped expression―a hackneyed expression―cut and dried expressions
ウスグロチャタテ
booklice
subjectification