A heart is a hollow muscular organ. - technical definition, Music makes me feel calm. - operational definition, Plants give us food. - operational definition, Road is a wide way leading from one place to another. - technical definition, Love is an intense feeling of deep affection. - technical definition,

Technical or Operational?

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排行榜

闪存卡是一个开放式模板。它不会为排行榜生成分数。

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恢复自动保存：？