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
Do have some more, there's plenty left.
多吃一点，还有很多呢！
The goods we offered last week are running out, therefore, the offer terminates on 20th July.
上周我们报价的货物现已售完，所以，此报价在7月20日终止。
At the front of the classrooom.
在教室前排。