学课的英文：
study

There is no satiety in study
学无止境

This is a studied remark.
这是经过深思熟虑的评语。

This is a macrocosm study.
这是一个整体性研究

creation and study
创作与习作

Social studies is the study of how man lives in societies.
社科课程是对人们怎样在社会中生活的研究。