1.rigid/stiff/unchanged/little change僵硬的,一成不变的
2.significant/enormous/dramatic/tremendous/appreciably/remarkable/crucial/巨大的
3.approximately,nearly, almost 将近地
4.proportion/percentage 比例
5.be involved (in)/involve in/involvement[n.]涉及,卷入,参与
6.given/considering , in regard to/despite/although有鉴于、考虑到,尽管
7.deplete 开采完,耗尽/exhaust–exhaust emission (尾气)排放/exploit
8.capacity能力,容量/competence(竞争)能力/ability能力(笼统的)
9.a vast array of 系列/a great variety of 花样,品种/a great rang 系列of
10.pesticide 杀虫/suicide 自杀/homicide/murder杀人