at the night & during the night区别?

at the night & during the night区别? at the night与during the night 的区别,不要翻译 during the whole night和through the night的区别 at night / in the night at night?in the night? he relax____(relax )during the day but works at night. Tigers sleep during the day,but at night they()food ____ koalas sleep during the day ____ at night? at night 和in the night 的区别 on the late night与late at night 的区别 in the night和at night的区别 at night,in the night和on the night of,意思和用法的区别?