clapper/the slate（场记板）是什么意思？音标发音+图解场景

场记板 /ˈklapə ˈslaʃ ðə ˈsleɪt/ n

English: clapper/the slate · 场记板

释义：Panel consisting of two small boards that are clapped together to signal the start of shooting.

这个词出现在以下图解场景（1）