单词 unavail 释义 unavail, v.[un-1 14, after unavailing.]trans. and intr. To be of no avail (to); to fail.1866J. B. Rose tr. Ovid's Met. 23 Aye, all my knowledge unavails its lord.Ibid. 186 And lest medicaments should unavail [Medea] Chanted another magi...