十五计划的英文：
the 10th Five-Year Plan
The State Council has ratified the National Tenth Five-Year Plan of Environmental Protection.
国务院批准了《国家环境保护“十五”计划》。
num. 五
n. 五个一组
A pentagon has five sides and five corners.
五边形有五条边和五个角。
fiveteen contains five and three.
15可被5和3除尽。
He knows five languages.
他精通五种语言。
n. 年；学年，年度；年级学生；年龄；时期；很久；一年时间
Year succeeds to year.
年复一年。
This year is a banner year for crops.
今年是个丰年。
Year after year went past.
一年又一年过去了。
n. 计划，打算；平面图，示意图
v. 计划，打算
If you fail to plan, you plan to fail.
如果你不做计划，那就是在计划着失败。
imperative planning
急需的计划
planning parameter
规划参数；规划规范