wangguan50
幼苗
共回答了16个问题采纳率:81.3% 举报
China approximately produces 45 billion pairs of disposable chopsticks annially, which nees 6 million of big trees to be cutted, however, the ecological value of the one big tree is 9 times of the valuewhen it is made as chopsticks.
还有问题可以问我~~
1年前
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