Idioms, etc.

邪悟	Enlighten along an evil path
大小便失禁	Lose control of one’s bowels and bladder; Become incontinent in urination and defecation
黑手党	Mafia
幸灾乐祸	Gloat over other’s misfortune; take pleasure in other’s misfortune
黔驴技穷	At one’s wits’ end
绝处逢生	Alive after desperation; emerge from despondency; a narrow escape; be unexpectedly rescued from a desperate situation; find one’s way out from an impasse
助师护法	Assist Teacher in safeguarding the Fa
嫁祸于人	Impute crimes to others; shift misfortune onto somebody else; put the blame on somebody else; shift the blame to somebody else
(狱中)报号	Roll call
牽連	To be implicated; to be involved in (trouble)
人面獸心	One with a human face but a venomous heart; have the face of a man but the heart of a beast; a beast in human shape
輸液	Receive intravenous infusion
嚇一跳	To have a big scare; got frightened
在例假期	In menstruation; to be menstruating
得道多助	A righteous cause attracts/enjoys abundant support
奥姆真理教	Aum shinrikyo
镇邪	Suppress the evil
魔窟	Evil den
堂堂正正	Openly and aboveboard
光说不做	When it comes time to do something, one pays lip service to something
迷魂药	Psychotropics
全神贯注	With rapt attention; be absorbed in; be engrossed in; be preoccupied with
惩恶扬善	Quell the evil and embrace the good
天理昭昭	Heavenly principle is finding its clear expression; the course of nature is clear and manifest
波澜壮阔	Surge forward with great momentum; unfolding on a magnificent scale
磬竹难书	Too many incidences to list; too numerous to record
七窍流血	Bleeding from nose and mouth
欲速则不达	More haste, less speed
多行不义必自毙	Tribulation for enough crimes will come in fullness of time
画蛇添足	Draw a snake and add feet to it; ruin the effect by adding something superfluous
自相矛盾	Contradict oneself; be self-contradictory
井底之蛙	A frog at the Bottom of a Well (implying a person with a very limited outlook)
拔苗助长	Try to help the shoots grow by pulling upward.
五十步笑百步	One who retreats fifty paces mocks one who retreats a hundred; the pot calls the kettle black
助纣为虐	To do things that help the evil
善有善报， 恶有恶报	Good is rewarded with good and evil meets evil
不给其市场	Do not give them an audience

It is highly recommended that every translator/proofreader get a copy of "A Modern Chinese-English Dictionary." One way to get this is to buy it from China and then have it brought abroad.

More idioms can be found from http://chineseculture.about.com/library/extra/idiom/blidiom.htm

More proverbs can be found from

http://chineseculture.about.com/library/literature/blsproverb-ad.htm

http://chineseculture.miningco.com/cs/proverbs/

An online Cà E dictionary

http://www.tigernt.com/cedict.shtml