Filtration underground
[医] 地下过滤
🧩 词语组成解析
n. 过滤\\n[化] 过滤
🗣️ 情景例句
But you just got here. Can't you stay a little longer?
可你刚刚到，再多呆一会儿，好吗？
He is shocked.
他受到了打击。
the necessary method of study is to group the relevant material and to take note of all possible variant forms and conditions.
应采取的研究方法是，把有关各方面的材料汇集起来，同时注意任何可能出现的异常情况和条件。