单词	spot-check
释义	spot-check verb ˈspät-ˌchek  spot-checked; spot-checking; spot-checks transitive verb : to sample or investigate quickly or at random intransitive verb : to make a spot check Word History First Known Use 1920, in the meaning defined at transitive sense
随便看	signal red signal the retreat signal tower signal-caller signal-callers signaled signaler signalers signalest signaling signalisation signalise signalised signalises signalising signality signalization signalizations signalize signalized signalizes signalizing signalled signaller signallers

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