This is the most inefficient use of your reading time.

这时我见过的最有效的利用阅读时间的方法。

Indian companies are most inefficient in the world. Can Modi can change it ????

印度公司是世界上最没有效率的，莫迪能加以改变吗？

Dan Delurey, who heads the Demand Response and Smart Grid Coalition, says the most inefficient time on the electricity system is the peak period during daytime hours.

"需求回应和智能电网联盟"的头头丹-迪鲁瑞说，电力系统效率最低的时间是在白天的高峰时期。