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