kilo-：thousand

　　gram——kilogram

　　meter——kilometer

　　macro-：large，esp．concerning a whole system rather than particular parts of

　　economics——macroeconomics

　　structure——macrostructure

　　mal-：bad or badly

　　function——malfunction

　　treat?——maltreat

　　micro-：extremely small

　　computer——microcomputer

　　electronics——microelectronics

　　mid-：middle

　　day——midday

　　night——midnight

　　mini-：small；short

　　bus——minibus

　　skirt——miniskirt

　　mis-：bad or badly；wrong or wrongly

　　fortune——misfortune

　　understand——misunderstand

　　mono-：one；single

　　plane——monoplane

　　tone——monotone

　　multi-：more than one；many

　　purpose——multipurpose

　　national——multinational

　　non-：not

　　resident——non（-）resident

　　sense——nonsense

　　out-：outside；beyond

　　live——outlive

　　door——outdoor

　　over-：too much；above；additional

　　head——overhead

　　time——overtime

　　poly-：many

　　centric——polycentric

　　syllabic——polysyllabic

　　post-：later than；after

　　graduate——postgraduate

　　war——postwar

　　pre-：before；in advance

　　pay——prepay

　　war——prewar

　　pro-：in favor of，supporting

　　America——pro-America

　　abortion——pro-abortion

　　re-：again；back to the former state

　　unite——reunite

　　use——reuse

　　self-：by means of oneself or itself；of，to，with，for，or in

　　oneself or itself

　　employed——self-employed

　　taught——self-taught

　　semi-：half；partly

　　circle——semicircle

　　final——semifinal

　　step-：not by birth but through a parent who has remarried

　　mother——stepmother

　　children——stepchildren

　　sub-：under，below；less important；part of the stated bigger whole

　　divide——subdivide

　　section——subsection

　　super-：more，larger，greater than usual

　　market——supermarket

　　natural——supernatural

　　tele-：at or over a long distance；by or for television

　　communication——telecommunication

　　screen——telescreen

　　therm（o）-：concerning heat

　　chemistry——thermochemistry

　　meter——thermometer

　　trans-: across，on or to the other side of ; between

　　Atlantic—transatlantic

　　plant—transplant

　　tri-:　three; three times

　　angular—triangular

　　cycle—tricycle

　　ultra-:　beyond; very，extremely

　　modern—ultramodern

　　sound—ultrasound

　　un-:　not

　　certain—uncertain

　　fortunate—unfortunate

　　under-:　too little; below

　　develop—underdevelop

　　sea—undersea

　　uni-:　one，singer

　　form—uniform

　　directional—unidirectional

　　vice-:　next in the rank; below

　　chairman—vice-chairman

　　president—vice-president