Definition
Referring to a specific moment when an action was considered or executed.
當時
I thought it was a good idea at the time, but now I know I was wrong.
當時我認為這是個好主意，但現在我知道我錯了。
He was very excited at the time and didn't realize the consequences.
當時他非常興奮，沒有意識到後果。
We were in a rush at the time, so we didn't check the details.
我們當時很匆忙，所以沒有檢查細節。