🧩 词语组成解析
non
[[nɔn]]
adv. 非, 不
🗣️ 情景例句
Your grandfather went to the Engineering School there.
你爷爷进那个工学院。
That's too loud.
声音太大了。
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。