Curb (verb)

　　●To control or limit something that is not wanted.

（遏制，制止）

　　Examples:　　

　　1.The government should act to curb tax evasion.　　

　　2.The police are trying to curb under-age drinking.

　　fond dream/hope/wish etc. (phrase)

　　●Something that you very much want to happen.

（黃粱美夢，一廂情願的想法）

　　Examples:　　

　　1.He had fond dreams of living on Saturn.　　

　　2.It was their fondest hope that the children would do well at school.

　　Get off/go Scot-free (idiom)

　　●To escape punishment for a crime or wrongdoing; to be acquitted of charges for a crime.

（逍遙法外，未受懲罰）

　　Examples:　　

　　1.The thief got off scot-free.　　

　　2.My younger sister caused endless trouble as a child, but because she was the baby of the house, she usually went scot-free.

　　Crack down (on sb/sth) (phrasal verb)

　　●To start dealing with bad or illegal behaviour in a more severe way.（打擊，處罰，鎮壓）

　　Examples:　　

　　1.The library is cracking down on people who lose their books.　　

　　2.The police cracked down on the street gangs. They cracked down once last year too.

　　Loophole (noun)

　　●Something that has been left out of a law or legal document that people can use to avoid obeying it.

　　（漏洞）

　　Examples:　　

　　1.The company employed lawyers to find loopholes in environmental protection laws.　　

　　2.He exploited a legal loophole in order to avoid paying child support.