他们未能经济地经营电话网络.They were unable to run the telephone network economically.产生激光光子的费用太高,因此,不能用它很经济地制造出大多数化合物.Producing laser photons is too expensive to make most compounds economically.目的是使树冠保持在一定的高度和宽度的范围内,更经济地管理.The purp...

“经济地”的英语可以翻译为：economically ...