我已经对营养学，不同饮食和医学做了45年的研究，并被人们多次问到如何减肥。

I've studied nutrition, different diets, and medical studies for 45 years. And I've been asked the how-to's of weight loss many times.

youdao

我已经对营养学，不同饮食和医学做了45年的研究，并被人们多次问到如何减肥。

I've studied nutrition, different diets, and medical studies for 45 years. And I've been asked the how-to's of weight loss many times.

youdao