但是，当对采用优体纤减肥法的患者进行超音波检查时，研究人员发现，仅在开始节食几个月他们就开始形成胆结石了。

But when sonograms were taken of patients using Optifast, researchers found that people who had gall stones developed them within just a few months of beginning the diet.

youdao

但是，当对采用优体纤减肥法的患者进行超音波检查时，研究人员发现，仅在开始节食几个月他们就开始形成胆结石了。

But when sonograms were taken of patients using Optifast, researchers found that people who had gall stones developed them within just a few months of beginning the diet.

youdao