单词:slide valve distribution
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This is the VOA Special English Health Report. A.D.H.D. is attention deficit hyperactivity disorder. Government estimates say three to seven percent of school-age children in the United States have it. Adults can also have it. People with A.D.H.D. ha
Texas Teen Examines the Music of the Backyard At this year's South By Southwest Festival, the Saxon Pub put established Texas singers and their musical offspring onstage together. For singer John Dee Graham's 13-year-old son, William, this was a debu
Broadcast: May 6, 2003 By Caty Weaver VOICE ONE: I'm Sarah Long with Bob Doughty, and this is the VOA Special English program, SCIENCE IN THE NEWS. VOICE TWO: Today, we talk about some disorders of th
Music Industry Addresses Drug, Alcohol Problems The shocking stories are familiar - lives cut short by alcohol and drug abuse. Cocaine contributed to Whitney Houston's death. She drowned in her bathtub in a Beverly Hills hotel earlier this year. Mich
今天我们要学的词是disorder。 Disorder, 有失调,疾病的意思。美国全国睡眠基金会的研究发现, The study found that watching television, playing video games, or checking emails before going to bed might be causes for sle
How To Prevent Seasonal Mood Disorder When the winter season arrives, the days begin to get shorter and shorter. During seasonal shifts, it is not uncommon for people to experience alterations in their moods. Commonly, negative feelings and attitudes