Be as busy as a bee 像蜜蜂一样忙碌，忙得团团转，表示忙忙碌碌,忙死忙活的。

【例句】
I'll be as busy as a bee if I want to finish all my homework before the semester is over.
如果我想要在学期结束之前完成所有的作业，我就会忙的不可开交。

He is as busy as a bee once in a while.
他有时也像蜜蜂一样忙碌。