Activated sludge method
[医] 活性污泥法(污水处理)
🧩 词语组成解析
activated
['æktiveitid]
adj. 有活性的;
v. 使活动，起动，触发( activate的过去式和过去分词 );
n. 软泥, 泥泞\\n[化] 沉淀物; 泥状沉淀
🗣️ 情景例句
I have an announcement to make.
我要宣布一件事。
Not necessarily.
不见得。
although what impression any other civilization would thus get from us is best left unsaid.
至于其他文明行星对我们地球会有什么印象，还是不说为好。