慳電方法 | 一到夏天天氣咁熱，相信好多人都會長期開冷氣，喺不經不覺嘅情況下，隨時倍增，甚至電費仲要畀成千蚊！但其實長開冷氣，電費都未必係你想像中咁貴，前天文台台長林超英雖然被譽為環保達人，但其實佢都
電費
慳電方法 | 一到夏天天氣咁熱，相信好多人都會長期開冷氣，喺不經不覺嘅情況下，隨時倍增，甚至電費仲要畀成千蚊！但其實長開冷氣，電費都未必係你想像中咁貴，前天文台台長林超英雖然被譽為環保達人，但其實佢都
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