Piing
abbr. 产品改进（Product Improve）
🗣️ 情景例句
No, it's not taken.
没有 ，没人坐。
I have so much to do after I retire.
我在退休后有许多事要做。
Did she learn all by herself? How clever.
她全是自己学会的吗？多么聪明啊！