Galactase
半乳糖酶
🗣️ 情景例句
Hi, Tom. How are you doing?
喂，汤姆。你好吗？
The future belongs to him who knows how to wait.
未来属于懂得等待的人。
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。