留美老师带你每天说英文 第140期:一项非常著名的研究

台湾籍旅美老师今天交给我们的句子是：

This became a very famous study and there's now many more; because after we did this about ten years ago, it became very well known.
因为我们在十年前做了这个之后，这成为了一个非常著名的研究，而且现在也有很多人正在做。