study当学业讲可数吗

[例句]She gave up her studies to have Alexander.

为了生亚历山大，她放弃了学业。

I know that you've been studying chimpanzees for thirty years now

我知道你研究黑猩猩至今已有30年了。

I invite every citizen to carefully study the document.

我请每位市民都仔细研读该文件。

They totally overlooked the study of the subject.

他们完全忽视了对这个问题的研究。

This is outside the range of our study.

这不属于我们研究的.范围。

The study also demonstrated a direct link between obesity and mortality

该研究还表明了肥胖症和死亡率之间存在直接的联系。

Several colleges in our study have rigid rules about student conduct

在我们的研究中，有几所大学制定了严格的学生行为规则。

Doctors study the structure of the human body.

医生研究人体构造。