self-cultivation

n.修身；自我修养

I do not like to go to the movies by my self. 我不喜欢自己一个人看电影。

I my self is going to make a sandwich. 我要亲手做个三明治。

He was a wreck of his former self. 他身体坏得不成样子，已兴从前判若两人。

Knowledge of self increases as one gets older. 随着年岁的增长，人们的自我认识也不断加深。

This land is feasible for cultivation. 这块地适合耕作。

Only 10 percent of the land was under cultivation. 只有百分之十的土地用作耕地。