经典: the classics, scriptures, classical, classic (example, case etc), typical...
简称: to be abbreviated to, abbreviation, short form...
精确: accurate, precise...
害怕: to be afraid, to be scared...
混浊: turbid, muddy, dirty...
今后: hereafter, henceforth, in the future, from now on...
沧桑: great changes, ups and downs, vicissitudes, abbr. of...
志愿: aspiration, ambition, to volunteer...
心里话: (to express one's) true feelings, what is on one's mind, secret mind...
小丑: clown...
