那些每天服用400医学国际单位（的药物），并持续了至少两年的健康人，患心脏病的可能性似乎更小。
Healthy folks who take 400 international units daily for at least two years appear somewhat less likely to develop heart disease.
那些每天服用400医学国际单位（的药物），并持续了至少两年的健康人，患心脏病的可能性似乎更小。
Healthy folks who take 400 international units daily for at least two years appear somewhat less likely to develop heart disease.
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