第105期:卡通片

Those forced to exercise their smiling muscles reacted more enthusiastically to funny cartoons than did those whose mouths were contracted in a frown, suggesting that expressions may influence emotions rather than just the other way around.

译文：

在看一些有趣的卡通片时，那些被称迫做出笑脸的人比那些撅嘴、皱眉的人反应更加喜悦，这就表明表情可能会影响情绪，而不仅仅是情绪影响表情。

点睛：

句子的主干是：Those...reacted mare enthusiastically to...than did those。其中包含more....than...的比较结构，比较的对象是those forced to exercise their smiling muscles和those whose mouths were contracted in a frown这两种人。whose引导的是以those为先行词的定语从句。suggesting that...为分词结构，其中that引导的是suggesting的宾语从句，rather than意为“而不是”，the other way around意为“相反地，颠倒”。