挥金如土 spend money like water
晴天霹雳 a bolt from the blue
了如指掌 be at one's finger tips
赴汤蹈火 go through fire and water
充耳不闻 turn a deaf ear to ...
视而不见 turn a blind eye to../shut one's eye from 指鹿为马 talk black into white
一箭双雕 kill two birds with one stone
差之毫厘，谬以千里 a miss is as good as a mile
烂醉如泥 be dead drunk
混水摸鱼 fish in troubled water
原形毕露 show the true color
害群之马 black sheep
欲速则不达 more haste ,less speed
不伦不类 neither fish nor flesh
画蛇添足 Bring coal to Newcastle(著名的产煤城市)
泄露天机 to let the cat out of the bag
孤注一掷 put all one's eggs in one's basket
不辞而别 Take French leave
班门弄斧 To teach fish to swim/to teach grandma to suck eggs | 
