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
He told me he was very impressed with you.
他告诉我他对你印象很好。
Never trust of fine words.
切勿轻信漂亮的言词。
You can depend on us, sir.
先生，您可以信赖我们。