当人类教家挖挖除夜天并找迪苹块三角形的燧石的时间，他们给出结论嗣魅阿谁工具必定是经过某人设念雍么做为箭体的末了箭徒暴的。
When anthropologists dig in the earth and find a triangular piece of sharp flint, they conclude that it must have been designed by someone to be the tip of an arrow.
昨天他告诉我，是谁吃了我的苹不美观，阿谁苹不美观是我妈妈给我买的。
Yesterday, he told me who had eaten my apple which my mother bought for me.
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