目前，研究者们发表首次的随机试验结果，他们高度称赞一种无副作用、不需吃药、而且完全免费的胃口控制剂。

Now, researchers have presented the first randomized trial of what they hail as a side-effect-free, prescription-free, and simply free appetite control agent.

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他突然灵机一动，跑上前去告诉他们他的主意：“我为你们提供一次免费的旅游，作为交换条件，你们必须在广告中称赞我的旅行社。”

Suddenly inspired, he ran up and told them his idea. "I 'll give you an all-expenses-paid vacation in exchange for appearing in ads endorsing my agency."

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