Yabla video uses of 外壳

Duì
de
胶水 jiāoshuǐ
原本 yuánběn
shì
yòng
xiān
tóng
外壳 wàiké
浸泡 jìnpào
之后 zhīhòu
制成 zhìchéng
de
shì
yóu
The glue was originally persimmon oil made by soaking the shells of fresh tung oil tree nuts.