Demersal
a. 居于水底的
🗣️ 情景例句
Three months ago.
三个月之前。
He is most noticeable for his southern accent.
他有很浓重的南方口音。
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。