Ectomesoblast
[胚]外中胚叶
🔁 扩展释义
【医】 外[胚层原]中胚层
🗣️ 情景例句
Thanks again.
再次谢谢 。
Deliberate in counsel, prompt in action.
考虑要仔细，行动要迅速。
No, more, about 130 years ago. Most of the slave owners were rich farmers who lived in the south. They wanted to keep their slaves.
不，还要早，大约130年前。大多数奴隶主都是住在南方的富有的农场主。他们想保留自己的奴隶。