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一、研究动机一天,我把一碗饭打翻了。当我拿扫把来扫时,发现一群黑乎乎的蚂蚁正忙着搬运米饭呢!我对
First, research motivation One day, I knocked over a bowl of rice. When I took the broom to sweep, I found a group of dark ants are busy handling rice!