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我家院里有棵老树,夏天特别葱郁,是个乘凉的好地方。不知从何时起,知了打破了夏天的宁静;不知道从何时起,“筑墙声”淹没了知了的叫声。
There is an old tree in my house, and it is particularly lush in the summer. It is a good place for enjoying the cool. I do not know from when, knowing broke the silence of the summer; do not know when to start, “building wall sound” drowned out the cries of knowledge.