Nonnegative
a. [数]非负的,正的,零的
🗣️ 情景例句
and some brushes and some paint.
刷子和油漆。
I often have breakfast in the morning.
我常常在早上吃早餐。
Collecting small items can easily become a mania.
收集小玩艺儿很容易着迷。