be busy with基本解释
忙于;从事;
be busy with网络解释
1. 忙于:be burned to a crisp 烧脆 | bebusywith 忙于... | be capable of 有做出(某事)倾向的
2. 忙于做某事:be angry with... 生某人的气 | bebusywith... 忙于做某事 | be covered with... 用......覆盖
3. 正忙于:稍稍整理 tidy up | 正忙于 bebusywith | 洗衣项目 laundry items
4. 使忙碌:w) 悲伤 sadness | x) 使忙碌 bebusywith | y) 勤奋的 hardworking