discourse

n.演讲

discontented, discontentedly, discontinuation, discontinue, discontinuity, discontinuous, discontinuously, discord, discordance, discordant, discordantly, discotheque, discount, discount house, discountenance, discourage, discouraged, discouragement, discouraging, discouragingly, discourteous, discourteously, discourtesy, discover, discoverer, discovery, discredit, discreditable, discreditably, discreet, discreetly, discrepancy, discrepant, discrete, discretely, discreteness, discretion, discretionary, discriminate, discriminating,