Nonnegative
a. [数]非负的,正的,零的
🗣️ 情景例句
Unmarried women should be addressed as 'Miss'.
未婚的女性应该被称作 'Miss' 。
In the United States ,there are many factories for making cloth.
在美国，有许多造布的工厂 。
Good idea! Can I come?
好主意！我能来吗？