n. 

(性)
concurrency control 
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leathercloth,
leathercoat,
leathercraft,
leatheret,
leatheret(te),
leatherette,
leather-grain,
leatherhacker,
leather-hard,
leatherhead,
相似单词
concupiscence,
concupiscent,
concupiscible,
concur,
concurrence,
concurrency,
concurrent,
concurrently,
concurring,
concurring opinion,