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- of or relating to low-fat or low-sugar versions of manufactured food or drink products, especially to low-calorie light beer（与）低脂（或低糖）食物（或饮料）（有关）的（尤指低热量淡啤酒）。
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- N. Amer. informal lacking in substance; facile〈北美, 非正式〉无实质性内容的, 缺少事实根据的; 轻而易举的。
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- mass noun light beer with relatively few calories低热量淡啤酒。
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- N. Amer.a courtesy light in a motor vehicle〈北美〉（汽车里面的）礼貌灯（门开后灯亮）, 门控车厢照明灯。
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