Etf
abbr. 交易型开放式指数基金（Exchange Traded Fund）；发动机试验设备（Engine Test Facilities）
🗣️ 情景例句
Unbelievable!
真不敢相信！
I ought to see the manager.
我应该见经理。
His roots and mine bad become too firmly embedded in the new land.
因为他与我一样已经把根深深地扎在异国的土地上。