study可数吗研究

　　It is important to develop good study skills.

　　培养良好的学习方法很重要。

　　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。

　　His face was a study in concentration.

　　他脸上完全是一副全神贯注的表情。

　　Physiology is the study of how living things work.

　　生理学是研究生物功能的学科。

　　This study represents a major expenditure of time and effort.

　　这项研究意味着要耗费大量的时间和精力。