•Deal a blow (to sb/sth) -

　　To cause someone or something, usually a plan or hope, to fail or to be affected very badly.（打击，使…受挫）

　　Examples:　　

　　1.Law enforcement deals a serious blow to the international drugs trafficking ring.　　

　　2.The sanctions have dealt a severe blow to the local tourism industry.

　　•Across the board (idiom) –

　　Applying to all.（全线，通盘）

　　Examples:　　

　　1.I think teachers should be paid more across the board, rather than singling out any one group.　　

　　2.They decided on a pay increase of 10% across the board.

　　•In a breeze (idiom) –

　　Easily; handily; without much or any effort.（轻而易举，毫不费力）

　　Examples:　　

　　1.I'm confident that I can pass the math exam in a breeze.　　

　　2.Enjoying the benefit of a week off between games, the home team won this match in a breeze.

　　•Have (got) a hand in sth (idiom) -

　　To be involved with something or have influence on something.（插手，参与）

　　Examples:　　

　　1.He thanked all who had a hand in his release.　　

　　2.Who planned the party - I bet you had a hand in it, didn't you?

　　•Root sth/sb out (phrasal verb) -

　　to find and remove a person or thing that is causing a problem.（找到并根除，发现并杜绝）

　　Examples:　　

　　1.The mayor was determined to root out corruption in city government.　　

　　2.The principal promised to root out the troublemakers.