不可数名词：

1. ~(in sth)干涉；干预；介入

2.（无线电信号的）干扰

英语解释

a policy of intervening in the affairs of other countries

(American football) blocking a player's path with your body

any obstruction that impedes or is burdensome

electrical or acoustic activity that can disturb communication

the act of hindering or obstructing or impeding