语言选择:
免费网上英汉字典|3Dict

Embryo sac

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

Embryo sac \Em"bry*o sac`\ (Bot.)
   See under {Embryonic}.
依字母排序 : A B C D E F G H I J K L M N O P Q R S T U V W X Y Z