not if, but when

副词 adv.

英文释义

副词 adv.
  1. Inevitably. not-comparable
    — Not if, but when your files eventually get corrupted, you'll turn into the kind that makes back-ups.

词源

Used as an intensifier when a scenario is considered extremely likely, such that if (implying low likelihood) is not sufficient to represent its probability of occurrence.
(Whereas if implies only possibility, when implies certainty, where only the time that something happens is unknown.)
0 次浏览 数据来源: Wiktionary