also jack-boot, 1680s, type of large, strong cavalry boot of 17c.-18c., later a type worn by German military and para-military units in the Nazi period. From jack (n.), though the exact sense here is unclear + boot (n.1). Figurative of military oppression since 1768. Related: Jackbooted.
实用例句
1. to be under the jackboot of a dictatorial regime
处在专制制度的铁蹄之下来自《权威词典》
2. National culture was crushed under the invader's jackboot.
在侵略者的残酷统治之下,民族文化遭到蹂躏.来自互联网
3. It has a music and flats . It is a martial music. It has a jackboot rhythm.
