Periostracum
n. (軟體動物介殼的) 角質層
?? 擴展釋義
【醫】 外殼膜
??? 情景例句
Good.
好極了。
The paperhanger is working with sticky wallpaper.
裱紙匠正在貼著附粘膠的壁紙。
gradually, and often quite swiftly,
那么漸漸地，往往也是很順利地，