Traditionally, they used to teach people relaxation exercises but that proves too difficult.

这些方法通常被用来帮助人们做放松练习,但效果不佳。

耶鲁公开课 - 心理学导论课程节选

Similarly,I believe that if we wish to prevent drug abuse in teenagers who grow up in a neighborhood that puts them at risk, the effective prevention is not remedial.

同样，如果我们要防止,青少年受不良的社会环境影响,而滥用药物的情况，但预防的效果不佳。

哈佛公开课 - 幸福课课程节选