🗣️ 情景例句
No, no. Please, go ahead.
不用 ，不用。你走吧。
Your right hand is swollen.Does it hurt?
你的右手是肿的.它受伤了吗？
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。