Procell
[医]原始细胞
🗣️ 情景例句
Oh, we have a lot to be thankful for.
啊，我们有很多需要感谢的事情。
Promise little but do much.
少许愿，多做事。
This is because they had no natural enemies until the arrival of humans and therefore did not need to develop flying wings.
这是因为人类到达这里之前，这些鸟没有天敌，因此，它们不需要发育飞行的翅膀。