对路线的保护措施包括保证路线的固定性，这样其他人可以享受自然和攀登的过程。

Conservation of a route involves leaving it unchanged so others may enjoy nature and the climb.

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有着固定性关系的青少年在成绩方面与那些禁欲的同龄人相比，学习成绩并无差异，有着差异的是他们对于学习的期望值及对大学的期望值。

Teens in serious relationships did not differ from their abstinent counterparts in terms of their grade-point average, how attached they are to school or college expectations.

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某些投资者会因为固定年金的固定性而郁闷，固定意味着完全不变动，就像碰上了美杜莎目光的石头人一样。

What troubles some investors is that fixed really means fixed—as in set in stone, like Medusa’s victims.

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