o'clock
US /əˈklɑːk/
UK /əˈklɑːk/

副詞
1.
點鐘
used after a number from one to twelve to indicate a particular hour when telling the time
範例:
•
It's three o'clock.
現在是三點鐘。
•
The meeting starts at nine o'clock in the morning.
會議在早上九點鐘開始。
在 Lingoland 學習這個單詞