| 例句 |
tip-offsnounpl. of tip-off something that tells of approaching danger or riskthe retreat of the island's wildlife to higher ground was a tip-off that a tsunami was about to strike cautions, red flags, red lights, tocsins, wake-up calls, warnings omens, portents, premonitions, presagesnotices, notificationsbuoys, indicators, knells, signals, signsforetastes, foretokensannouncements, declarations all clears |