1
- a continuous deep, resonant sound隆隆声; 辘辘声：
the rumbling of wheels in the distance.
远处辘辘的车轮声。
1.1
- （常作rumblings）an early indication or rumour of dissatisfaction or incipient change抱怨; 谣言, 谣传：
there are growing rumblings of discontent.
不满的怨言越来越多。
1
- making or constituting a deep resonant sound隆隆声的; 辘辘声的：
rumbling trams
隆隆驶过的有轨电车
a rumbling noise.
隆隆的响声。
1.1
- (of dissatisfaction or a dispute) continuing in a persistent but low-key way（不满, 争吵）持续但不引人注意的, 无休止的：
a rumbling dispute about changes to working conditions.
关于工作环境改变的喋喋不休的争论。