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
A young female may be addressed as 'young lady'.
一个年轻的女性可以被称作 'young lady'。
Don't forget to write to let us know you arrived safely.
不要忘记写信回来，告诉我们你已经安全抵达。
Now she's holding it for Jim. Jim is climbing up the ladder.
现在她在给吉姆扶着梯子。吉姆正在爬上梯子。