Rona
abbr. 净资产回报率（return on net assets）
🗣️ 情景例句
OK. Let's choose the deal at 300 dollars per set CIF New York.
好吧。让我们以纽约到岸价格每台300元成交。
You name it!
你说出来。
The city was equipped with a drainage system, for a great many clay pipes were found beneath the narrow streets.
城里甚至还敷设了排水系统，因为在狭窄的街道底下发现了许许多多陶土制作的排水管道。