to fulfill what was promised or expected
履行承诺或预期的内容 (lǚxíng chéngnuò huò yùqī de nèiróng)
"He lived up to his promise and completed the project."
"他履行了他的承诺并完成了项目。" (Tā **lǚxíngle tā de chéngnuò** bìng wánchéngle xiàngmù.)
a mysterious or unexplained force in a system or person
involving secrecy, mystery, and deception
the last or most difficult challenge or area of exploration
to teach someone about a subject or skill
a view from a high position; an overview
to attribute something to a particular cause
