Unsustained
a. 未持续的,不受支持的, 未保持的
🗣️ 情景例句
I was faced with a new problem.
我面临了新的问题。
To play with the frog
逗青蛙玩
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。