We know now with the same spring, by this comparison, we will find all objects now can be attributed a mass.

我们现在知道利用相同的弹簧,采用这种比较的方法,就会发现,所有物体都有确定的质量

耶鲁公开课 - 基础物理课程节选

But you can grow it in cultured cells, and the advantages of that are that you can do this under very reproducible conditions.

而且采用细胞培养疫苗,这种方法的优点是,你可以在同样条件下进行再培养

耶鲁公开课 - 生物医学工程探索课程节选

You can similarly explore your sophomore year and Harvard thankfully does have this mechanism.

你也可以看一下大二课程的打分方法,哈佛也采用这种打分制。

哈佛公开课 - 计算机科学课程节选

And sometimes in my intro classes that's the approach that I take.

有时候，在我的介绍课上,我采用这种方法。

耶鲁公开课 - 死亡课程节选