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To one who has faith, no explanation is necessary. To one without faith, no explanation is possible.
解释:大部分鸟类都是雄性的,而雌鸽却是雌性的,说明了鸟类性别的特殊性。
I am living a dream I never want to wake up from.
Mathematics is the most beautiful and most powerful creation of the human spirit.
The child is not a passive recipient of knowledge but an active participant in the learning process.