An efficient public transport system makes sense both environmentally and economically.高效的公共交通系统无论是在环境保护方面还是在经济方面都是有意义的。

an economically depressed area经济萧条地区

We live very economically.我们过得很节俭。

Services could be operated more efficiently and economically.服务机构的运行还可以更经济高效一些。

Burn's novel, vividly and economically written, is a sombre reflection on fame and its cost.伯恩的小说描写生动, 语言简练, 对成名以及为此付出的代价进行了深刻剖析。