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枫叶在夏季时还是绿色的,可是一到秋季就变红了,这是为什么呢?可能每个人都有不同的答案。给我们来信吧。答案正确的前10名小读者,都将获得本刊赠送的精美礼品一份。
Maple leaves are still green during the summer, but turn red as soon as the fall. Why is this? Perhaps everyone has a different answer. Let us have a letter The correct answers to the top 10 small readers, will receive the gift of a beautiful gift.