“波动的”的英语

在许多应用场合,波动的直流电是讨厌的.In many applications a fluctuating DC current is undesirable.他是个情绪波动的演员(演得好坏由心情而定).He's avery temperamental player, ie plays well or badly accordingto his mood.他们波动的回声中带有一种难言的悲哀.In their echoes, t...