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Open the tool →可一而不可再 (kě yī ér bù kě zài) is a Chinese idiom (chengyu) meaning “it can be done once, but not twice”.
可一而不可再 is pronounced kě yī ér bù kě zài in Mandarin Chinese.
Literally, 可一而不可再 means “can one but not again”. It is used to mean “it can be done once, but not twice”.
再:两次或第二次。指只可以做一次而不可以做第二次