单词onionskin
na.: 葱皮；葱皮纸
网络: 洋葱皮色；洋葱皮纸；洋葱皮效果
葱皮
薄的半透明纸
To prepare the dye solution, cover 30 grams onionskin of onionskins with water.
准备染料溶液时，在水中加入30斤洋葱皮。
That"s why they invented the mail system and carbon paper and onionskin copies,
这就是人们发明邮寄系统和复写纸还有半透明纸的原因