【正确答案】：
AMELIORATION IS ALSO CALLED ELEVATION, A TERM REFERRING TO THE PROCESS BY WHICH WORDS RISE FROM HUMBLE BEGINNINGS TO POSITIONS OF IMPORTANCE, E.G., “NICE” USED TO BE “ARROGANT” THEN CHANGED INTO “FOOLISH” AND NOW ELEVATED TO MEAN “PLEASANT, DELIGHTFUL”.
【题目解析】：词意的升格（或改良）指词语从一开始的卑微的地位提升到重要地位的过程。比如：“nice”过去是“傲慢”，后来变成“愚蠢”，现在被提升为“愉快、愉快”的意思。
