all hours

most of the time, especially outside the time considered usual for something

（尤指在通常做某事的時(shí)間之外的）大部分時(shí)間

teenagers expect to be allowed to stay out &B{to all hours}.

青少年希望被允許大部分時(shí)間待在外面。

keep late (或regular) hours

do the same thing, typically getting up and going to bed, late or at the same time every day

每天做同一件事情（多指起床和睡覺(jué)）很晚（或有規(guī)律）

on the hour

at an exact hour, or on each hour, of the day or night

（白天、晚上）在整點(diǎn)，在每一小時(shí)

after a period of one hour

在一小時(shí)后

within the hour

after less than an hour

在不到一小時(shí)后