Grammatite
透闪石
🗣️ 情景例句
Hi, Dad.
你好， 爸爸。
I doubt it.
我表示怀疑。
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。