Daily Chinese Idiom Guessing Game
To continue working day and night; to work around the clock without rest.
晚上连着白天。形容加紧工作或学习。
《庄子·至乐》夫贵者，夜以继日，思虑善否。”《孟子·离娄下》仰而思之，夜以继日。”
The team worked night and day to meet the project deadline.