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玻璃是家家都需要的,但是现在的玻璃却有许许多多的不足之处,比如:它又薄又脆,有时连声波都能把它震碎,破碎后还会伤人;颜色太单调……
Glass is needed by everyone, but there are many shortcomings in today’s glass. For example, it is thin and brittle. Sometimes it can be shattered even by sound waves. ...