Piing
abbr. 产品改进（Product Improve）
🗣️ 情景例句
You sound like something's bothering you, Susan.
听起来好像你有什么心事， Susan？
Who is the greatest novelist of our times?
谁是当代最伟大的小说家？
I had a seat beside the window.
我的座位在窗口旁