其他演员埋怨我在他们想专心的时候在一旁胡闹。The other actors complained about me larking about when they were trying to concentrate.我觉得保持沉默、做一名专心的听众比较明智。I felt it politic to keep my peace and play the part of the attentive listener.蒙妮卡上课时非常专心...

“专心的”的英语可以翻译为：concentrative，intent，single-minded，unfaltering，attentive ...