Pentamoxane
戊胺恶烷
🗣️ 情景例句
Definitely.
没问题。
Why are you so excited?
你干嘛那么激动？
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。