大学较通常的做法是直接介绍送行的安排，明确到最后拥抱道别的时间。

A more common approach is for colleges to introduce blunt language into drop-off schedules specifying the hour for last hugs.

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通常，当磷元素向新生组织转移时，较老的叶片首先受到了影响。

Typically, older leaves are affected first as the phosphorus is mobilized to young growing tissue.

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这些通常是由用金属线串起来的小块亮印花金属组成，然后固定在一根较粗的基础导线上。

Often these consisted of small pieces of brightly printed metal strung by wire to a thicker base wire.

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