concealment

n.隐藏, 掩盖，隐瞒

computation, computational, compute, computer, computerization, computerization, -isation, computerize, computerize, -ise, computing, comrade, comrade-in-arms n (pl comrades-in-arms), comradely, comradeship, con, con man, concatenate, concatenation, concave, concavity, conceal, concede, conceit, conceited, conceitedly, conceivable, conceivably, conceive, concentrate, concentrate on, concentrated, concentration, concentric, concept, conception, conceptive, conceptual, concern, concerned, concernedly, concerning,