Convergence pressure
[机] 会聚压力
🧩 词语组成解析
convergence
[kən'və:dʒəns]
n. 集收敛;集合;会聚;[气]辐合;
🗣️ 情景例句
Have you got time this morning
今天上午你有时间
If he doesn't, will you fix it?
如果他不，你会修理它吗？
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。