Return of investment
[经] 投资利润, 投资报酬
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
and the pain is so bad.
疼得很厉害。
He knows most who speaks least.
大智者寡于言。
Quick, turn the gas off. Cover the pan. Be careful!
快，把煤气关上。盖上锅。小心！