o'clock
US /əˈklɑːk/
UK /əˈklɑːk/
副詞
1.
時, 時ちょうど
used after a number from one to twelve to indicate a particular hour when telling the time
例:
•
It's three o'clock.
3時です。
•
The meeting starts at nine o'clock in the morning.
会議は午前9時に始まります。
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