Irrelvant
a. 不相关的,不切题的
🗣️ 情景例句
Lots of wonderful memories.
留下的是许多美好的回忆。
Oh well, better luck next time.
算了，下次的运气会更好。
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。