Though the industry's coming of age is still some way in the future, this launch marks its transition from childhood to adolescence.

虽然业界的“成熟期”（固定盈利时期）仍然遥不可期，但是这次发射标着行业已完成了从“儿童期”（探索时期）到“青春期”（迅速发展时期）的过渡。

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As children transition from childhood to early adolescence, the parent's role begins to change.

当孩子从儿童时期过渡到青少年早期时，父母的角色就开始变化了。

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Adolescence is the process of going from childhood to maturity.

青春期是从少年到成年的过渡期。

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From childhood to adolescence, girls face mixed messages about displaying power and authority.

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There has certainly always been pressure on high school students as they move from childhood to adolescence and to adulthood in this four year span of time.

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As childhood gives way to adolescence and that to manhood this kind of boy tends to be progressively cut off from the ordinary life of his group .

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