常見例句雙語例句Those black clouds betoken rain.那些烏云預(yù)示即將下雨。dict.cnThose black clouds betoken rain .那些烏云預(yù)示有雨。www.translation-dictionary.netThe changes of molecular weight and molecular weight distribute determined with GPC under given conditions may betoken whether polymer is living one.用凝膠滲透色譜儀（GPC）在一定的條件下，測(cè)定聚合物的分子量及其分布的變化可以預(yù)示聚合物是否為活性聚合物。權(quán)威例句On this analysis, the government's silence on the euro does not betoken doubt about its poll-winning prowess, but is rather a sensible strategy designed to avoid unduly antagonising the voters.ECONOMIST: The euro 返回 betoken