六级Some of the heat is used directly or produces useful work; the rest is lost or rejected, radiated into the atmosphere from the engines, motors, boilers and all the energy-consuming machinery that makes American’s wheel go around.
部分热量直接使用或产生有用功;其余的则丢失或被拒绝,从发动机、发动机、锅炉和所有使美国车轮转动的耗能机械中辐射到大气中。
2015年12月听力原文
考研And there is also the objection that the city has always been the core from which cultural advancement has radiated.
也有人反对城市一直是文化进步的核心。
1987年全国硕士研究生入学统一考试英语试题
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