越来越少怎么说?

修饰可数名词用fewer and fewer如fewer and fewer people
修饰不可数名词用less and less如less and less time

less and less
例句：
The noise became less and less.
声响渐渐小起来了。

less and less

LESS AND LESS 不可数
FEWER AND FEWER可数

因为less and less/fewer and fewer

less and less
fewer and fewer