头发灰白的人通常不用开口就能得到折扣；然而，数以百万计60岁以上的美国人身体健康，有偿还能力。
People with gray hair often are given the discounts without even asking for them; yet, millions of Americans above age 60 are healthy and solvent.
就在这关键时刻，头发灰白的陌生人进来了。
It was just at this critical juncture that the grey-haired stranger arrived.
一个头发灰白的妇人向您说：“当时我也住在这里。”
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