例如，如果你微笑，你的声音会听起来温暖和友好，相反，如果你脸上有一个生气的表情，它会让你听起来不愉快。
For example, if you smile, your voice will sound warm and friendly, just the opposite, if you have an angry look on your face, it can make you sound unpleasant.
在一些最贫困国家，很多“可再生”能源是通过燃烧木材和其他生物质产生的，用途也只是取暖和烹饪。这些国家的能源利用，“既不环境友好，效率也不高。”
Much "renewable" energy was generated by burning wood and other biomass for heating and cooking in the poorest countries - energy use that is "neither environmentally friendly nor efficient".
他看起来不安全。他看得出她很害怕所以他用友好的声音说“我是来帮你的女士。”为什么你不在暖和的车里等？
He didn't look safe. The man could see that she was frightened, so in his friendliest voice he said, "I'm here to help you, madam. Why don't you wait in the car where it's warm?"
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