反义词是decrease，意思是减少，例如：
1、The number of new students decreased from 210 to 160 this year.今年新生人数从210减少到160。
2、There has been some decrease in military spending this year.今年的军费开支有所减少。
3、Fatal road accidents have decreased in frequency over recent years.近年来致命交通事故发生率已经下降。
