以下为句子列表：
英文: But there's one thing researchers are sure of: The insect, ear of corn, inverted fish and other symbols inscribed on an ancient stone slab is the earliest known writing in the Western Hemisphere.
中文: 但有一件事研究员是肯定的:昆虫、玉米穗、倒置的鱼、和其他符号被题写在一块古老的平石板上，是西半球已知的最早的文字。
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英文: Wooden and stone slab floors ⑤gave way to user-friendly tile and linoleum.
中文: 便于使用的瓷砖和油毯代替了木质和石质地面。
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