One of the most challenging problems of today's society is the question of who should be responsible for our elderly.

当今社会最复杂的问题之一是：谁该对我们的老年人负责。

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One of the most challenging problems of today's society is the question of who should be responsible for our elderly.

当今社会最复杂的问题之一是：谁该对我们的老年人负责。

youdao