cinnamon bun
noun [ C ] mainly UK uk/ˌsɪn.ə.mən ˈbʌn/ us/ˌsɪn.ə.mən ˈbʌn/ (US usually cinnamon roll, uk/ˌsɪn.ə.mən ˈreʊl/ us/ˌsɪn.ə.mən ˈroʊl/)
桂皮味小圆面包
a round, sweet bread flavoured with cinnamon
Robert had stuffed half a cinnamon bun in his mouth and couldn’t say a word. 罗伯特把半个桂皮味圆面包塞在嘴里，说不出话来。