direct current意思是：直流电例句Most batteries produce direct current, but household electrical outlets provi...

alternating current意思是：交流电例句This machine uses alternating current to generate electricity.这台机器使用交流电生...

on the grounds that意思是：因为例句On the grounds that it was raining heavily, we decided to stay indoors.因为...

put on意思是：穿上；打开（设备、装置等）；上演；举办；展出；提供公共交通服务；增(重)；提高成本；假装；押注；使受到影响；分配；取笑，戏弄；让(某人)接电话；本页标题: put on是什么意思？...

run the risk意思是：冒风险例句I know investing in the stock market is risky, but I'm willing to run the risk....