水族箱过泸器

掌握英语发音第一章第三节

[00:00.00][s],[ ][ ] [00:38.61]sea/sheet/chicken [00:42.66]Exercise One: Word Conparison [00:47.62]Listen to the following words from your tape and repeat. [00:52.98]sip ship sane shane watched washed [01:01.23]lass lash least leashed chin [01:09.09]

发表于:2018-12-03 / 阅读(127) / 评论(0)

掌握英语发音

365个英语简短小故事-335. The Vacuum Cleaner Filter(2)

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

发表于:2018-12-11 / 阅读(70) / 评论(0)

365个英语简短小故事

Indian Scientists Invent Nose Filter to Protect Against Air Pollution

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

发表于:2019-01-03 / 阅读(65) / 评论(0)

2018年VOA慢速英语(一)月

2006年VOA标准英语-Georgia Aquarium Draws Enthusiastic Crowds

By Song Lin and Xiao Hong Atlanta, Georgia 06 April 2006 watch Georgia Aquarium report Atlanta, the home of Coca Cola and cable news giant CNN, now has another landmark: the Georgia Aquarium. Since it

发表于:2019-01-31 / 阅读(113) / 评论(0)

2006年VOA标准英语（四月）

2007年VOA标准英语-Water Filter Wins Developer Engineering Prize

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

发表于:2019-02-03 / 阅读(92) / 评论(0)

2007年VOA标准英语（五月）

美国国家公共电台 NPR The Oyster's Mighty Comeback Is Creating Cleaner U.S. Waterways

The Oyster's Mighty Comeback Is Creating Cleaner U.S. Waterways ELISE HU, HOST: Oyster farms are rapidly sprouting up along America's eastern shoreline. Production doubled in just the past six years, driven by the farm-to-table movement. As Delaware

发表于:2019-02-13 / 阅读(29) / 评论(0)

2016年NPR美国国家公共电台8月

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Aconitum sessiliflorum

batch fractionating column