Upflow filter
[化] 上流过滤器
🧩 词语组成解析
vi.向上流
filter
['fɪltɚ]
n. 滤波器;滤光器;滤色镜;[化] 过滤器;
vi. 过滤;透过;渗透;
vt. 过滤;滤除;
🗣️ 情景例句
Today is the twelfth. Why?
今天是十二号。怎么？
Please sit down and have a glass of milk.
请坐下来喝一杯牛奶。
The Scandinavian countries are much admired all over the world for their enlightened social policies.
斯堪的纳维亚半岛各国实行开明的社会政策，受到全世界的推崇。