Hsu
abbr. 历史数据站（Historical Storage Unit）
🗣️ 情景例句
Would you like something to drink?
你们要点什么饮料吗？
Bye! Have a good day.
再见！请慢走！
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。