If you do something busily, you do it in a very active way.
例句
The two saleswomen were busily trying to keep up with the demand.那两名女售货员正忙着接待顾客。
英汉词典释义
adv.
忙碌地;起劲地
A swarm of ants are moving busily.一群蚂蚁正在忙碌地搬家。All were busily engaged,men at their ploughs,women at their looms.大家都很忙,男的耕田,女的织布。Mother was busily cutting sandwiches.母亲正在忙着切三明治。