单词：backwashing filter
单词：backwashing filter 相关文章
Washing In The Morning This is the way I wash my face, wash my face, wash my face. This is the way I wash my face, so ear-ly in the morn-ing
优美儿童英语歌曲
A: Have you finished washing clothes? B: I've finished my white clothes. I need to wash the rest. A: Well, when you do your darks, can you wash some of mine too? B: I can do that. Is there a special way you want them washed? A: They need to be washed
英语情景对话-日常生活
But the HEPA filter for Olivers Vibe got dirty very quickly. And, it was not cleanableit was simply replaceable. When it turned filthy brown, Oliver went back to Target to buy a new filter. Oddly, Target sold the F15 belt for the Vibe, but not the fi
365个英语简短小故事
From VOA Learning English, this is the Health Lifestyle report. In parts of India, it is not uncommon to see people wearing a mask over their nose and mouth. The capital, New Delhi, has some of the world's dirtiest air. The pollution was a call for a
2018年VOA慢速英语(一)月
By Tabinda Naeem Washington, D.C. 21 May 2007 Two years ago, the National Academy of Engineering established the Grainger Challenge Prize for Sustainability. This $1 million award was designed to challenge the world's scientists to develop a practica
2007年VOA标准英语（五月）
A: Have you washed any clothes yet? B: No, I've only washed my whites. A: When you wash your dark clothes, can you put some of mine in? B: Sure. Is there any extra care that I should take with your clothes? A: Just make sure you keep it on the gentle
日常生活-Daily Life