cupboard有两个词义，既可用于英式英语，也可以用于美式英语。
但如果是表示第二个释义，只可用于美式英语。
（1）a piece of furniture with doors and shelves, used for storing dishes, food, clothes, etc.橱柜，食物柜，衣柜例如：kitchen cupboards厨房用的橱柜（2）a space in a wall with a door that reaches the ground, used for storing things壁橱例如：built-in cupboards壁橱
