Nonnegative
a. [数]非负的,正的,零的
🗣️ 情景例句
Is it possible that we forgot to buy cinnamon?
是不是我们忘了买肉桂？
I think it's a reasonable price.
我觉得这是个合理的价钱。
A lot of things can change over twenty-one years.
21年了，许多东西都可能改变的。