Perpetuates
v. 使永存（ perpetuate的第三人称 ）; 使持续
🗣️ 情景例句
When would we have to move?
什么时候我们得搬家？
I wash his face and hands,and then I dress him.
我洗他的脸和手，并且我给他穿衣服。
So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish.
从测定海深到测定鱼群，这一进展比较容易。