breaking the wall（抽牌口）是什么意思？音标发音+图解场景

抽牌口 /ˈbɹeɪk ˈluːp/ n

English: breaking the wall · 抽牌口

释义：Opening in the wall that determines the place from which the tiles will be drawn.

这个词出现在以下图解场景（1）