煤是一种不可再生的能源，地球上储存的煤只能供人类开采100多年，因此我们应珍惜用煤。我们这里产煤也烧煤，每家一天要烧掉4—5个煤球，来了客人或者到了冬天，甚至要用6个蜂窝煤，平均每天少说也要烧掉5个蜂窝煤，一年之中要烧掉近2000个蜂窝煤，能不能够节省一点呢？哪怕是 Coal is a non-renewable energy source. Coal stored on the earth can only be mined by mankind for more than 100 years. Therefore, we should cherish the use of coal. We also produce coal and burn coal. Each day we burn 4-5 briquettes. When we come to the guests or in the winter, we even use 6 briquette coals. We burn an average of 5 briquette coals every day. To burn nearly 2,000 honeycomb coal, can it not save a little? Even if it is