Run counter to sth (idiom)

　　●To be in opposition to something; to run against something.（違背，抵觸，與……背道而馳）

　　Examples:　　

　　1.Your proposal runs counter to what is required by the manager.

　　2.The article presents facts that run counter to what many of us believed had happened.

　　Retroactively (adverb)

　　●With effect from a date in the past before a law, decision, etc. was approved.（追溯地）

　　Examples:　　

　　1.The legislation applies retroactively to January.　　

　　2.The management retroactively approved some of those expenditures.

　　Follow up on sth (phrasal verb)

　　●To enhance the effectiveness of something by means of further action.（跟進，後續行動）

　　Examples:　　

　　1.I followed up on the job interview with an email.

　　2.Did you follow up on their request?

　　That's all there is to it (idiom)

　　●It is as simple as it seems to be. There is nothing hidden.（這就是所有的一切（全部真相）；如此而已，豈有他哉）　　

　　Examples:　　

　　1."Everything is energy and that's all there is to it." – Albert Einstein.　　

　　2.Just plug it in and flip the switch, that's all there is to it.

　　Stand/stick out a mile (idiom)

　　●To be very obvious or easy to see.

　　 （十分明顯，一目了然）

　　Examples:　　

　　1.His lack of experience sticks out a mile.　　

　　2.The twins' resemblance stood/stuck out a mile.