夹层

hollow layer between two solid layers / (architecture) mezzanine

to press from either side / to place in between / to sandwich / to carry sth under armpit / wedged between / between / to intersperse / to mix / to mingle / clip / folder / Taiwan pr. [jia2]

double-layered / lined (garment)

Taiwan pr. used in 夾生|夹生[jia1 sheng1] and 夾竹桃|夹竹桃[jia1 zhu2 tao2]

variant of 夾|夹[jia2]

to pile on top of one another / layer; stratum / floor (of a building); story / (math.) sheaf / classifier for layers