to leave school or university before finishing a course
在完成课程之前退学 (zai wancheng kecheng zhiqian tuixue)
"He dropped out of college to start his own business."
"他为了开始自己的生意退学了。" (Ta wei le kaishi ziji de shengyi tuixue le.)
to stop someone from speaking or expressing themselves
to absorb and enjoy an experience fully
to increase physical power through exercise
to learn or gain something valuable from an experience
to finish or close work for the day
to stay positive that life will improve