为了赶上关键截止日期，研究团队常常工作到凌晨。

The research team often works ___into ___the ___wee ___hours to meet critical deadlines.

音乐会结束后，城市的街道在凌晨时分依然熙熙攘攘。

After the concert, the city streets were still bustling ___in ___the ___wee ___hours.

我发现我最具创造力的想法总是在黎明前的凌晨时分涌现。

I find that my most creative ideas come to me ___in ___the ___wee ___hours before dawn.