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
Try putting him across your lap on his stomach.
试试让他趴着睡在你大腿上。
What did he say in the letter?
他在信里说什么了？
Intermittent tap-water supplies should be regarded as particularly suspect.
断断续续的水管应该被视为是非常可疑的。