now or never

副词 adv.
中文释义
英 /ˌnaʊ‿ə ˈnɛvə/    美 /ˌnaʊ‿əɹ ˈnɛvəɹ/

英文释义

副词 adv.
  1. At this sole opportunity or time, or not at all. idiomatic,not-comparable
    — [A]s you tender the welfare of your country, I entreat you not to forget or delay so public-spirited a work. Now or never is the time.
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