Nonnegative
a. [数]非负的,正的,零的
🗣️ 情景例句
Like them? They represent your best work.
何止喜欢？ 它们代表了你最佳的作品。
Lightly gain,quickly lost.
来得容易去得快；不义之财，理无久享。
Yes, Mum. What do you want to buy?
好，妈妈。你想买什么？