Converting costs
[经] 加工成本
🧩 词语组成解析
[建] 转化, 改变
n. 费用；诉讼费；损失（cost的复数）
🗣️ 情景例句
No, no, you were right. I was wrong.
确实不容易 说对了。我错了。
What do you want to be after you're on your own?
当你有自主能力的时候，你想做什么？
Number five.
是5号。