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
Is it possible for you to go into it in more details?
能否解释得更详细一点？
Goodbye. Hope to see you again next year.
再见。希望明年再见到你。
Please give them all my best wishes. I hope Polly is well, too.
请向他们转达我的最良好的祝愿。我还希望波利也很好。