🗣️ 情景例句
Hello, Mr. Carlson.
哈喽， Carlson先生。
Speech shows what a man is.
言如其人。
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。