小小小雨桐
be busy doing sthbe busy with sthbe engaged in doing sthbe absorbed in doing sth 专注于做..... devote oneself to 献身于，忙于be dedicated to sth /doing sth 献身于，致力于 occupy oneself in doingbe occupied in doing
nixiaoyanzz
忙于做某事的英文是：be busy doing sth忙于做某事例句：The conviction of the parent was that I should be busy doing more important thingsrather than finding fault with an adolescent's vocabulary. 这名家长唯一确定的事情就是：我应该忙着做一些更重要的事情，而不是找一个未成年人用语方面的岔。
