问题描述: 20 percent 还是20 percents我在百度上搜索两个都查的到呀 1个回答 分类:综合 2014-12-07 问题解答: 我来补答 20 percent例句:China will strive to increase its forest coverage in 70 percent of the cities nationwide to 30 percent,with per capita public land under vegetation reaching eight square meters. 展开全文阅读