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

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...