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 then, two years ago, my wife died.
接着， 两年前我妻子去世了。
I can see you have put a lot of time into it.
我相信你在制定这个计划上一定花了不少精力吧。
It doesn't matter.
没关系。