Eqi
abbr. environmental quality index 环境质量指数
🗣️ 情景例句
Yeah,
是啊。
Thank you for your letter.
谢谢你的来信。
Precautions of this sort are necessary, for it is impossible to foretell the exact nature of the difficulties which will confront the pot-holer.
作出这样的准备是必要的，因为无法预见到洞穴探险者究竟会遇到什么性质的困难。