Definition
On numerous occasions; frequently.
多次，頻繁地。
She has warned him many a time about using his phone at work.
她已經多次警告他不要在上班時使用手機。
We have discussed this issue many a time, but still haven't reached a consensus.
我們已經多次討論過這個問題，但還是沒有達成共識。
He tried to fix the computer many a time, but failed.
他多次嘗試修理電腦，但都失敗了。