Efficiency of investment
[经] 投资效率
🧩 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
Run it by me again, if you don't mind.
不介意的话，请再说一遍。
Do you have any other flights?
你们还有别的班机吗？
One day, Mrs. King asked Lucy to go shopping for her.
一天，金太太叫露西帮她去买东西。