gei1 bat1 ho2 sat1機不可失机不可失
Jyutpinggei1 bat1 ho2 sat1
Yalegēi bāt hó sāt
Definition
Opportunity knocks but once; a rare chance that must not be missed.
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How it's used
Carries a sense of urgency and gravity, often used to persuade someone to act immediately before a window of opportunity closes. While it originates from classical Chinese, it is frequently used in business or formal negotiations to add weight to a recommendation. It is less common in casual, everyday small talk compared to more direct phrases like 唔好錯過.
Examples
This opportunity is so rare, we really must not miss it.
The boss said we shouldn't miss this chance and told us to sign the contract immediately.
Common phrases
Opportunities do not repeat themselves.
Common mistake
Avoid using this in trivial situations, such as deciding what to eat for lunch, as it sounds overly dramatic and formal for minor daily choices.
Grammar color guide
Noun
Verb
Adjective
Adverb
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Grammar guides
- TonesCantonese has six tones, and the tones can change in certain grammatical contexts. Learn the six tones and the rules for tone change.
- Time and datesClock time, days of the week, months, and years. The patterns you need to make plans and talk about when things happen.
- Modal verbsHow to say can, will, may, should, must, and want. The core modal verbs of Cantonese and the differences that trip up beginners.



