be busy on doing sth

意思翻译 忙于做某事 相似词语短语 be busy doing sth───忙着做某事 be busy doing───忙着做某事；忙于（做）... busy doing───忙于 doing sth───正在做某事 kept on doing sth───继续作某事，坚持做某事 be busy───忙的；不遑宁处；忙碌；忙活；赶趁 plan on doing sth───计划做某事 decide on doing sth───决定做某事 be better off doing...