whirr
Word family nounwhirrwhirring
whirr, whir /wɜː $ wɜːr/ verb (whirred, whirring) [intransitiveI] → wereCSOUNDto make a fairly quiet regular sound, like the sound of a bird or insect moving its wings very fast 〔像鸟或昆虫快速拍动翅膀一样〕呼呼作响,啪啪作响 Helicopters whirred overhead. 直升机在头顶上轰鸣。
—whirr noun [countableC usually singular] the whirr of an electric motor 电动马达的嗡嗡声
Origin whirr (1300-1400) Probably from a Scandinavian language