成對的兩張床
核心畫面本身：twin 講的是「一模一樣的一對」。
noun · A2
One of a pair of matching single beds put in the same room, so that two people can each sleep in their own bed. It is usually used in the plural: twin beds.
成對單人床之一
核心畫面
Think of two matching narrow beds standing side by side in one room, a small table between them. Each one holds a single , and the two are the same: same size, same shape, a pair. That matching pair is the picture the word starts from, and the size of one of those beds is what the word later points at on its own.
可以想成「一個房間裡並排的兩張一樣的窄床」，中間也許擺張小桌子。每張只睡一個人，兩張長得一模一樣，成雙成對。twin…更多收起
可以想成「一個房間裡並排的兩張一樣的窄床」，中間也許擺張小桌子。每張只睡一個人，兩張長得一模一樣，成雙成對。twin 這個字本來就是雙胞胎的意思，所以先看到的是這對床；而其中一張床的大小，後來就變成人家在講的那個尺寸。Two branches
美式的床尺寸名
注意力從「一對」移到「其中一張有多大」，twin 就變成尺寸的名字。
noun · A2
A bed that is just big enough for one person. In American English, twin is the name of this bed size.
單人床