释义:谦虚的君子,即使处于卑微的地位,也能以谦虚的态度自我约束,而不因为位卑,就在品德方面放松修养。现常用“卑以自牧”表示以谦卑自守,以谦卑的态度修养自心。
The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the universe to do.
The concept of polynomial-time reduction is central to understanding the structure of NP-complete problems.