d/stiff/unchanged/little change僵硬的,一成不变的'
ificant/enormous/dramatic/tremendous/appreciably/remarkable/crucial/巨大的
oximately,nearly, almost 将近地
ortion/percentage 比例
involved /involve in/involvement涉及,卷入,参与
n/considering , in regard to/despite/although有鉴于、考虑到,尽管
ete 开采完,耗尽/exhaustexhaust emission 排放/exploit
city能力,容量/competence能力/ability能力
9.a vast arrayof 系列/a great variety of 花样,品种/a great rang 系列of
icide 杀虫/ homicide/murder杀人