Progress is not going to be even. There is going to be a period where it is going to feel very bad still and very uncertain.

VOA: standard.2009.04.05

And research very often delivers bad news, saying it's not enough-- the contact; it's not enough to praise.

研究往往带来坏消息，只是接触还不够;,只是赞扬还不够。

哈佛公开课 - 幸福课课程节选

So this is not a very positive sign and people are having a bad relationship with food.

这不是个正面的信号,人们和食物之间的关系变糟

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选