rat-a-tat
Longman Dictionary of Contemporary English 5++LDOCE 5++ˌrat-a-ˈtat (also rat-a-tat-tat) noun [singular] Cthe sound of knocking, especially on a door 敲击声;〔尤指敲门的〕砰砰声Origin rat-a-tat (1600-1700) From the sound
ˌrat-a-ˈtat nounChineseSyllable
rat-a-tat
ˌrat-a-ˈtat
(also ˌrat-a-tat-ˈtat) noun [singular]
ˌrat-a-ˈtat
(also ˌrat-a-tat-ˈtat) noun [singular] Date: 1600-1700
Origin: From the sound
the sound of knocking, especially on a door
Origin: From the sound