双棘龙是个巨大的恐龙，它约有90英尺长，其中，脖子长26英尺，尾巴45英尺。
Diplodocus was a giant dinosaur. It was about 90 feet long. Its neck was 26 feet long and its tail was 45 feet long.
双棘龙是个巨大的恐龙，它约有90英尺长，其中，脖子长26英尺，尾巴45英尺。
Diplodocus was a giant dinosaur. It was about 90 feet long. Its neck was 26 feet long and its tail was 45 feet long.
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