RACHEL MARTIN, HOST: South Korea is one of the smoggiest countries in the world. It's common to hear that neighboring China is to blame for that, but a recent NASA study found there's a lot Korea can do on its own to clear the air. Here's NPR's Elise

发表于:2019-01-16 / 阅读(84) / 评论(0) 分类 2017年NPR美国国家公共电台10月

今天我们要学的词是hazard。 Hazard, 是危害,危险的意思。混合动力车虽然有利于环保,但是低速行驶时几乎没有声音,对盲人的安全构成威胁, Hybrid vehicles pose a safety hazard for the blind. 最近,有

发表于:2019-02-07 / 阅读(95) / 评论(0) 分类 英语单词荟萃