by 研究，学习。它的造句如下：
1.I started studying law in university， but I switched to science.
2.When I started studying physics， I didn't have the slightest clue how the world worked. Now. I have a PhD.
studying中文是什么
studying是study的现在分词形式，因此它的中文意思与study用作动词时的意思一样，可以解释为“学习研究”。
如：He is studying in the reading room.