问题描述：
重点是as tall as 后面的20-story是什么意思
Most wind energy comes from turbines that can be as tall as a 20-story building and have three 200-foot-long (60-meter-long) blades.
Most wind energy comes from turbines that can be as tall as a 20-story building and have three 200-foot-long (60-meter-long) blades.
问题解答：
我来补答展开全文阅读