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机不可失，时不再来
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Definitions
- 1. Opportunity knocks but once. (idiom)
Child Words of 机不可失，时不再来
Time that has passed will never come back. (idiom)
o'clock
No time to lose! (idiom)
no; not so
(bound form) machine; mechanism
to lose
no more
again; once more; re-
to come
cannot; should not; must not
can