书籍 Top Notch 基础A - 第 5 单元 - 第 1 课

anything that takes place, particularly something important

the quantity that is measured in seconds, minutes, hours, etc. using a device like clock

put after the numbers one to twelve to show or tell what time it is, only when it is at that exact hour

the time of day when the sun is at its highest point in the sky, typically around 12 o'clock

the middle of the night when the clock shows 12 AM

between midnight and noon

after noon and before midnight

happening or done before the usual or scheduled time

exactly at the specified time, neither late nor early

doing or happening after the time that is usual or expected