study作为名词学业可数吗

例句

How long have you been studying English? 你学英语多久了？

My brother studied at the Royal College of Art. 我哥哥曾就学于皇家美术学院。

He studied her face thoughtfully. 他一边端详她的脸，一边沉思。

Fran was studying the menu. 弗兰在仔细地看菜单。

We will study the report carefully before making a decision. 我们将认真研究这份报告，然后再作决定。