I mean buy could actually be a negative indicator that this is probably not of interest to the user.

我的意思是购物可能是一个负面暗示,暗示用户对这些不是很有兴趣。

哈佛公开课 - 计算机科学课程节选

So I by that indicator we are in a recession and we don't know that it's over yet; it's been falling.

所以我，通过那个指数，我们正处于经济衰退时期,并且我们不知道它是否结束；它一直在下降。

耶鲁公开课 - 金融市场课程节选