busy working；having much to do忙于干… He was busy with／over／at his work．他忙着干他的工作。 She was busy day and night with her research work．她日夜忙着做她的研究工作。
busy at
busy working；having abundant to do忙于干… He was active with／over／at his work．他忙着干他的工作。 She was active day and night with her analysis work．她日夜忙着做她的研究工作。 Dictionary
An busy at idiom dictionary is a great resource for writers, students, and anyone looking to expand their vocabulary. It contains a list of words with similar meanings with busy at, allowing users to choose the best word for their specific context.
Словарь похожих слов, Разные формулировки, Синонимы, Идиомы для Идиома busy at