Complete additivity
[计] 完全可加性
🧩 词语组成解析
[化] 相加性; 加成性; 叠加性
🗣️ 情景例句
Not until recently.
最近才考虑到。
I ought to do it again.
我应该再做一次。
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。