资料来源 : pyDict

薄的半透明纸,洋葱皮

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Onionskin \On"ion*skin`\, n. [Onion + skin.]
   A kind of thin translucent paper with a glossy finish.

资料来源 : WordNet®

onionskin
     n : a thin strong light-weight translucent paper used especially
         for making carbon copies [syn: {flimsy}]