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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
Primrose是一种淡黄色的可爱花朵，名叫樱草花。它的花呈管状，聚集在一起形成伞形花序，花冠呈漏斗形或托盘状。Primrose起源于中古拉丁文prima rosa，意思
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Darwin was about to give his 1992 Buick Regal to his girlfriends son, Gilroy. But before doing that, Darwin had to make sure the car was safe. If anything was wrong with the car and it caused Gilroy to be injured, Darwin would in turn be injuredby Gi
365个英语简短小故事
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）
1) Off the beaten path 很少有人去的 2) Overrun 泛滥，人太多 3) Local 当地人
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