单词：balanced filter film
单词：balanced filter film 相关文章
Some people eat to live, but there are others who live to eat. To live a long and healthy life, we must learn to have a balanced diet. A balanced diet simply means a bit of everything. A diet which in
赖世雄初级美国英语
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
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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 Lisa Schlein Geneva 27 November 2007 The United States is urging the International Red Cross Movement to adopt, what it calls, a more balanced approach in dealing with the consequences of climate change. More than 1,500 representatives attending t
VOA常速英语2007年（十一月）
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）
Now just what are the tips in China's new dietary guidebook that will help you stay fit and keep the doctor away? Diversity is key. That means eating a balanced combination of all four of the major food groups on a daily basis. Carbohydrates from gra
cctv9英语新闻2016年