busy作形容词,意为“忙碌的;无暇的”。反义词为free,意为“空闲的”。其常用结构为: 1. be busy doing sth. 忙于做某事
2. be busy with sth.忙于某事。
3. be busy in doing sth, in可以省略。
扩展资料
例:He is busy at work. 他忙着工作。
例:Jean is busy with her work. 琼忙于自己的工作。
例:I am busy writing a novel. 我正忙于写小说。