Nonnegative
a. [数]非负的,正的,零的
🗣️ 情景例句
Here are ten letters that express my feelings for you.
这里有十个字母可以表达我对你的感情。
If it hadn't been for your help, we would never have finished it.
如果没有你的帮助，我们永远完不成任务。
rising at one-foot intervals all the way to the top of the atmosphere.
并按1英尺的间隔从地面一直排列到大气层的顶端。