its now or never
US /ɪts naʊ ɔr ˈnɛvər/
UK /ɪts naʊ ɔː ˈnɛvə/
短語
機不可失，時不再來, 現在或永不
used to say that something must be done now because there will not be another opportunity
範例:
•
This is our last chance to win the championship, it's now or never!
這是我們贏得冠軍的最後機會，機不可失，時不再來！
•
If you want to ask her out, it's now or never.
如果你想約她出去，機不可失，時不再來。