open sandwich
noun/ˌəʊpən ˈsænwɪtʃ/, /ˌəʊpən ˈsænwɪdʒ/
/ˌəʊpən ˈsænwɪtʃ/, /ˌəʊpən ˈsænwɪdʒ/
(British English) (North American English open-faced sandwich)
- a slice of bread with meat, cheese, etc. on top but without a second slice of bread to cover this
单片三明治（无顶层面包片）