emphasis n. force or stress given to a word or words when spoken, to make the meaning clear or to show importance

　　empirical adj. based on observation or experiment, not on theory

　　enable v. make able to do sth by giving him the necessary authority or means

　　encounter v. meet or find oneself faced by (sth/sb unpleasant, dangerous, difficult, etc)

　　energy n. ability to act or work with strength and eagerness

　　enforce v. ~ sth force people to obey (a law, etc); make sth effective

　　enhance v. increase make (sb/sth) look better

　　enormous adj. very large; immense

　　ensure v. make sure; guarantee

　　entity n. thing with distinct and real existence

　　environment n. conditions, circumstances, etc affecting people's lives

　　equate v. ~ sth consider sth as equal or equivalent (to sth else)

　　equip v. ~ sb/sth (with sth) supply sb/sth (with what is needed, for a particular purpose)

　　equivalent adj. ~ equal in value, amount, meaning, importance, etc

　　erode v. destroy or wear (sth) away gradually

　　error n. thing done wrongly; mistake

　　establish v. set up on a firm or permanent basis

　　estate n. area of land, esp in the country, with one owner

　　estimate n. judgement or calculation of the approximate size, cost, value, etc of sth

　　ethic n. system of moral principles; rules of conduct

　　ethnic adj. of a national, racial or tribal group that has a common cultural tradition

　　evaluate v. find out or form an idea of the amount or value of (sb/sth); assess

　　eventual adj. happening at last as a result; ultimate

　　evident adj. ~ (that...) obvious (to the eye or mind); clear

　　evolve v. (cause to) develop naturally and (usu) gradually

　　exceed v. be greater or more numerous than (esp a quantity)

　　exclude v. ~ sb/sth prevent sb from entering somewhere, taking part in sth, etc; keep sb out

　　exhibit n. object or collection of objects displayed for the public, eg in a museum