rumblings
n．隆隆声，轰鸣声：持续的低沉声音，通常表示不满、抱怨或某种活动的预兆。
例句
There are rumblings that the election may have to be postponed.
有传言说选举也许不得不延期。
《牛津词典》
Even Baldwin had become aware that there were rumblings of discontent within the ranks.
就连鲍德温也开始意识到内部成员有不满的迹象。
《柯林斯英汉双解大词典》
We think our perceptions of the world are real, but they are only biological and electrical rumblings.
我们认为我们对世界的感知是真实的，但它们只是生物和电器的声音。
