Upburst
n. 向上的迸发,上冲,猛增
🗣️ 情景例句
There are people in favor of the cultural programs, Mom.
会有许多人赞成文化活动的， 妈妈。
You can never tell about this sort of thing.
这种事谁也说不准。
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。