【powerful音标】 英[ˈpaʊəfl] 美[ˈpaʊərfl]
【单词释义】 powerful是什么意思：
adj.强大的；有权势的；有影响力的；强有力的；（药）有效地
adv.很；非常
[单词分级] 高考英语词汇
【单词例句】
◇ Last year, scientists saw some monkeys rubbing themselves with a certain kind of insects to protect themselves from fierce mosquitoes biting. According to the result of the inspection, they found that the insect contains a powerful drug, so local farmers were employed to catch the insects.
去年，科学家观察到猴子在身上擦某种昆虫来保护自己不受凶猛的蚊子的叮咬。根据检查的结果，他们发现这种昆虫含有一种具有强大效力的药物，于是，当地的农民都被雇来抓虫子。
---- Wildlife Protection
◇ "Music has a very powerful impact on the brain. It affects mood, mental performance and physical performance," says Dr. Spelman in a media release. "Many people find that listening to certain types of instrumental music can help them with their productivity levels. The music can function as a sort of 'white noise', cancelling out potentially distracting ambient noise."
斯佩尔曼博士在媒体发布会上表示：“音乐对大脑有着非常强大的影响，它会影响情绪、心理表现和身体表现。许多人发现，听某些类型的器乐可以帮助他们提高工作效率，音乐可以起到某种白噪音的作用，抵消了环境噪音的潜在干扰。”
---- Listening to classical music at work boosts productivity
◇ Sneezes are powerful, travelling up to 200 mph, according to MIT scientists, with the power to eject debris up to 25 feet.
麻省理工学院的科学家指出，喷嚏的力量是强大的，时速可达200英里（约合322公里），可以将碎片射出25英尺（7.6米）远。