His wife , a biochemist , was a dietician at a research institute.
学生物化学的 老伴儿 在一家研究所里做营养试验.
Beth the dietician was a dilemma.
饮食学家贝丝进退两难.
The best advice is to consult your doctor or a dietician.
最好的建议是向你的医生或营养师咨询.
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