Opportunity knocks but once Meaning in English
expression
释义
This expression means that you usually only get one chance to take advantage of a good opportunity, so you should not hesitate.
用法与细微差别
It's a formal proverb, often used to encourage someone not to delay when a good chance appears. Alternatives: 'Seize the moment', 'Strike while the iron is hot'. Rarely used in casual speech; more common in writing or advice.
例句
My father used to say, 'opportunity knocks but once' when I was unsure.
basic
You should apply to the university—opportunity knocks but once.
basic
I wasn’t sure about moving abroad, but my friend reminded me that opportunity knocks but once.
natural
If you get the chance to travel, go for it—opportunity knocks but once!
natural
Remember, opportunity knocks but once, so take that job offer.
basic
He hesitated to invest, but his mentor said, 'opportunity knocks but once.'
natural