建築裡的半層樓
這一支就是核心畫面本身，其他用法都從這裡出發。
noun · B2
A small extra floor built between two main floors of a building. It usually covers only part of the space, so it looks out over the floor below like a wide balcony.
夾層
核心畫面
One way to hold mezzanine is as a half floor: a level slipped in between two proper floors, too low to be the next storey and too high to belong to the one below. It does not fill the whole space, so it looks down over what is beneath it. Once you can see that half floor, every other use is the same shape put somewhere else — into a theatre, into a loan, into a machine.
「mezzanine」可以想成半層樓：塞在兩個正式樓層之間的一層，低到不算下一層，高到不屬於下面那層。它不會鋪滿整個…更多收起
「mezzanine」可以想成半層樓：塞在兩個正式樓層之間的一層，低到不算下一層，高到不屬於下面那層。它不會鋪滿整個空間，所以站上去會往下看見樓下。只要先看見這個半層樓，其他用法都只是把同一個形狀放到別的地方——放進劇院、放進一筆借款、放進一台機器。From the word’s history
Borrowed from French mezzanine and Italian mezzanino, from mezzano 'middle', from Latin medianus and medius 'middle'. The word has said 'in the middle' from the start.
它借自法文 mezzanine，再上溯義大利文 mezzanino，來自 mezzano「中間的」，源頭是拉丁文 medianus、medius「中間」。也就是說，「中間」兩個字從一開始就寫在這個字裡，後來的每一個用法都還站在那個位置上。
Wiktionary (kaikki extract), entry 'mezzanine': French mezzanine < Italian mezzanino < mezzano 'middle' < Latin mediānus < medius; source_ref kaikki:3f6f69a190036ae4:1064949912:35727
Two branches
劇院裡的那一層
把半層樓的位置搬到座位上：在一樓座位之上，在最高樓座之下。
noun · C1
In American and Canadian English, the lowest balcony in a theatre or cinema, or the first few rows of seats in that balcony.
（美）最低層樓座