/dɪˈkri:s ||; dɪˈkris/verb [I,T] to become or to make sth smaller or less 减少；降低: Profits have decreased by 15%.利润下降了15%。Decrease speed when you are approaching a road junction.快到路口时便要减速。 [OPP] increase 反义词为increase
*decrease²
/ˈdi:kri:s ||; ˈdikris/noun [C,U] (a) decrease (in sth) the process of becoming or making sth smaller or less; the amount that sth is reduced by 减少；降低；减少之量 [C] a 10% decrease in sales销售额下降一成