Payback method
[经] 回收期法
🧩 词语组成解析
[经] 报酬率
🗣️ 情景例句
During your computer classes, did they teach you how to fix a cooling fan?
在你的电脑课程，他们是否教过你如何修理散热风扇？
Don't open your book.
别打开书。
It's about 400 yards from here.
离这儿大约有400码。