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  3. Today’s cars are already built with a kind of converter(转换器). When exhaust flows

Today’s cars are already built with a kind of converter(转换器). When exhaust flows

游客2024-06-27  9
问题 Today’s cars are already built with a kind of converter(转换器). When exhaust flows through this converter "box", a chemical inside breaks down the Car’s pollutant(污染物质)into less harmful chemicals. But some pollutants still escape into the air to form smog(雾), which Can burn your eyes, nose and throat, and make breathing painful.
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答案 如今的汽车都已安装了一种转换器，当废气排入这种转换器“匣子”里时，其内部的一种化学品会把废气中的有害物质分解成害处较小的化学物质。但是，仍然有些污染物质会流入大气中形成有害烟雾。这种烟雾会灼烧你的眼睛，鼻子和喉咙，使你呼吸困难。
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