They all watched as his behavior changed from stereotypic and inactive behavior to a beautiful exhibition of natural exploratory behavior and delight.
他们注意到新星的行为不像以往那样千篇一律和不灵活，而是表现出一种对大自然探索的愉悦。
They all watched as his behavior changed from stereotypic and inactive behavior to a beautiful exhibition of natural exploratory behavior and delight.
他们注意到新星的行为不像以往那样千篇一律和不灵活，而是表现出一种对大自然探索的愉悦。
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