constructive

a.建设性的

constipated, constipation, constituency, constituent, constituent assembly, constitute, constitution, constitutional, constitutionalism, constitutionally, constitutive, constrain, constrained, constrainedly, constraint, constrict, constriction, constringe, construct, construction, constructively, constructor, construe, consul, consular, consulate, consulship, consult, consult with, consultant, consultation, consultative, consulting room, consume, consumer, consumer durables, consumer goods, consumerism, consuming, consummate,