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
Dear Allen.
亲爱的爱伦。
To a boiling pot flies come not.
苍蝇不叮沸水壶。
I had just lost $50 and I felt very upset.
我刚刚丢了50英镑，感到非常烦恼。