Pregastrulation
原肠形成前期
🗣️ 情景例句
Maybe we can spend some time together next weekend.
也许下个周末我们可以一起玩玩。
One chick keeps a hen busy.
一只小鸡已够母鸡辛忙。
Among them will be Debbie's mother, who swam the Channel herself when she was a girl.
他们当中还会有黛比的母亲，她本人还是个姑娘时，也曾横渡过英吉利海峡！