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
And here are your keys.
你的钥匙。
Where is immigration?
入境处在什么地方？
I crossed the street to avoid meeting him, but he saw me and came running towards me.
我穿过马路以便避开他，但他看到我并朝我跑过来。