gerontology
US /ˌdʒer.ənˈtɑː.lə.dʒi/
UK /ˌdʒer.ənˈtɑː.lə.dʒi/
1.
老年学
the scientific study of old age, the process of aging, and the particular problems of old people
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She decided to specialize in gerontology after seeing her grandparents age.
看到祖父母年迈后，她决定专攻老年学。
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Advances in gerontology are helping us understand the aging process better.
老年学的进步正帮助我们更好地理解衰老过程。