to explain or develop ideas in more detail
更详细地解释或发展想法 (geng xiangxi de jieshi huo fazhan xiangfa)
"The professor asked me to expand on ideas in my essay."
"教授让我在我的论文中更详细地展开想法。" (Jiaoshou rang wo zai wode lunwen zhong geng xiangxi de zhan kai xiangfa)
to write down important information while studying
to make a failing business successful again
to prepare or design something for a specific type of career...
to share and discuss ideas with someone to get feedback
to experience or survive an important period of history
to end diplomatic or political connections between countries