“6”用英语怎么说？

已开发土地的面积将从5.3%增加到6.9%。Developed land was to grow from 5.3% to 6.9%.菲律宾只剩下6,000平方公里的森林了。The Philippines has just 6,000 square kilometres of forest left.她于1920年3月6日出生在奥地利。She was born in Austria on March 6, 1920....