学个词 Learn A Word:2230_ at-risk

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　　今天我们要学的词是 at risk. At risk 意思是处于危险之中。最新研究显示，美国青少年缺觉情况日渐严重。Kids who don't get enough sleep are at risk for mood problems, depression, learning difficulties and poor grades. 睡眠不足的孩子面临情绪化，精神忧郁，学习困难，成绩下降等风险。沙特阿拉伯一项研究显示，One in four young people in Saudi Arabia are at risk for heart attacks due to unhealthy lifestyles. 由于生活方式不健康，沙特年轻人四个人里就有一个面临心脏病的风险。好的，今天我们学习的词是 at risk, at risk, at risk...