backing是什么意思

backing是什么意思 financial backing是什么意思 peel the wall sticker off the backing sheet carefully是什么意思 Material for the pouch is microfiber with TPE backing 中的microfiber with TPE backing是什么意思?microfiber with TPE backing指的是什么材料? backing singer backing vocals backing board embroidery backing backing the beard! backing on the path backing什么意思 I'm backing I am backing and Even now I smelt bread backing.为什么用backing Even now I smelt bread backing.为什么用backing 请问Backing in a straight put off on the backing 为什么不是I'm backing