单词	lacuna
释义	lacunala‧cu‧na /ləˈkuːnə/ noun (plural lacunae /-niː/ or lacunas) [countable] formal Word Origin WORD ORIGINlacuna Origin: 1600-1700 Latin ‘pool, hole in the ground, empty space’ Examples EXAMPLES FROM THE CORPUS Let us call this the structural lacuna of the intentional scenario. What I wish to suggest is that filling the structural lacuna makes structured talk without higher-order thought look much less likely. a place where something is missing in a piece of writing SYN  gap
随便看	RSI RSPB RSPCA RSS RSV RSVP RTF Rt Hon RTLS Rt Rev rub rubber rubber band rubber boot rubber bullet rubber chicken circuit rubber dinghy rubberneck rubbernecker rubber plant rubber-stamp rubber stamp rubbery rubbing rubbing alcohol

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