英语句子分析和翻译Yetstudiessuggestthataffirmationsdesignedtolifttheuser'smoodthroughrepetitionandvisualizingfuturesuccessoftenachievetheoppositeoftheirintendedeffect.书中的翻译：然而,研究显示,通过重复

Question

英语句子分析和翻译
Yet studies suggest that affirmations designed to lift the user's mood through repetition and visualizing future success often achieve the opposite of their intended effect.
书中的翻译：然而,研究显示,通过重复和想象未来成功来振奋情绪的、强有力的自我肯定,往往会适得其反.
我看不懂这个翻译.麻烦分析下句子成分,主要是that后的成分.

Answer 1

句中that affirmations后是个从句,可以加上（which are 或is）,designed（这里加了ed） to（目的）lift（提升,提高）the user‘s mood through（通过）repetition and visualizing future success（重复和想象未来的成功）often achieve the opposite of their intended effect（达到相反的效果）
看懂了吗,句子有点复杂,主要是加了一堆描述的词语