backlash

n. 后冲, 强烈反对
【电】 反撞, 逆栅流

back.lash

n.（名词）
A sudden or violent backward whipping motion.
后冲，反撞：突然或强烈的向后抽动
An antagonistic reaction to an earlier action:
激烈反应，激烈反对：对一个较早行动的对抗性反应：
例句：
.White backlash increases as the pressure for change in South Africa mounts.(Masipula Sithole)
.随着南非要求变化活动的压力的增加，白人的对抗情绪也增加了.(马西普拉·西索尔)

A snarl formed in the part of a fishing line that is wound around the reel.
缠结：在缠绕着线轮的钓线部分上形成的缠结
The play resulting from loose connections between gears or other mechanical elements.
齿轮隙：由于齿轮或其它机械装置之间的连接处松动而造成的间隙

【引伸】
back.lash.
v.（动词）