🧩 词语组成解析
num. 罗马数字8
🗣️ 情景例句
if you're not going to be happy about it.
假如你会因为这种事而不快乐的话。
What do you do?
你是做什么的？
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。