envelopmentn. 包、包圍、封套、封皮、封、裹學術名詞包裝:畜牧學、食品科技包封:畜牧學、食品科技包裏:畜牧學包裹:食品科技包圍:海事繞劍:體育英文釋義the act of enclosing something inside something else