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
Let's have your counter-offer?
那你给个价吧。
I have a slight fever.
我轻微发烧。
Bison waste no longer fell on the ground to improve the soil, which as a result became less good for growing plants.
地上不再有野牛的粪便来改良土壤，结果对于植物生长土壤变得不够肥沃了。