Blastodisk
[医] 胚盘, 胚层
🗣️ 情景例句
It's two words.
两个字。
Better be the head of the yeomanry than the tail of the gentry.
宁作自由民之首，不为贵族之尾。
We have special river birthday parties in the summer.
夏天，我们为这条河举办特殊的生日宴会。