Vitaminization
维生素化
🗣️ 情景例句
Nothing ventured, nothing gained.
不入虎穴，焉得虎子。
Thank you for coming to see me off.
谢谢你来为我送行。
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。