锅水品质

Inventors Win Award for Machine that Creates Water from Air

Water is a necessary resource for the health and survival of living things. But the availability of fresh water is decreasing for much of the worlds population. The United Nations estimates that about 3.6 billion people currently live in areas that f

发表于:2018-12-08 / 阅读(43) / 评论(0)

2018年VOA慢速英语(十)月

美国学生世界地理教材第131期:鱼儿峡湾瀑布和森林(2)

The Norwegian people catch herring in nets, then they salt, smoke, or dry them to make sure they will keep almost forever without spoiling. 挪威人用网打捞鲱鱼，然后，用盐腌制、用烟熏制、或晒干风干，用各种方法保存鲱鱼

发表于:2018-12-28 / 阅读(50) / 评论(0)

美国学生世界地理教材

美国国家公共电台 NPR Woman Returns To Her Slave Cabin Childhood Home In The Smithsonian

ARI SHAPIRO, HOST: The National Museum of African-American History and Culture here in Washington has many artifacts connected to slavery. For one woman, visiting the museum this week was a literal homecoming. Isabell Meggett Lucas was born and raise

发表于:2019-01-17 / 阅读(35) / 评论(0)

2017年NPR美国国家公共电台4月

AGRICULTURE REPORT - Simple Ways to Protect Water Quality

AGRICULTURE REPORT - Simple Ways to Protect Water Quality By Mario Ritter Broadcast: Tuesday, July 26, 2005 I'm Barbara Klein with the VOA Special English Agriculture Report. Afghans wash carrots in d

发表于:2019-01-30 / 阅读(67) / 评论(0)

农业与发展

选择一个节能的供暖系统

The more you know about the various heating systems that are available on the market today, the better able you will be to choose the best one for your home. Obviously, your main goal (besides being comfortable), is to have a heating and air conditio

发表于:2019-02-04 / 阅读(86) / 评论(0)

实用英语

英国学生科学读本第35期:蒸汽往上冒(2)

There would soon be an explosion; the kettle would be burst open. It is in this way that boiler explosions are often caused. When there is too much steam in a boiler, and it cannot get out, it presses against the sides of the boiler, until at last th

发表于:2019-02-07 / 阅读(79) / 评论(0)

英国学生科学读本

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