東西與空間：裡面就備齊了
這一組把那條封閉的線畫在物件和空間上。看到這個字，要問的就是一句話：它還需不需要外面補什麼進來？答案是不需要，那就是 self-contained。
adjective · B2
Having everything inside it that it needs in order to work, so it does not depend on other things or on help from outside.
自成一體的
核心畫面
You can picture self-contained as a box with the lid shut. Whatever it needs is already inside, so nothing has to be passed in from outside. A program that needs no other software, a flat with its own kitchen and bathroom, a person who seems fine on their own — the same closed line is drawn around each of them. The line is not a refusal of the outside world. It only says: what is needed is in here already.
可以想成一個蓋子蓋起來的盒子：要用的東西都已經在裡面，不必再從外面遞進去。軟體不必靠別的程式、房子裡自己有廚房和浴室…更多收起
可以想成一個蓋子蓋起來的盒子：要用的東西都已經在裡面，不必再從外面遞進去。軟體不必靠別的程式、房子裡自己有廚房和浴室、一個人不太需要別人陪——畫的都是同一條把自己圍起來的線。這條線不是在拒絕外面，它只是在說：裡面就夠了。From the word’s history
The word is simply self- plus contained. Contain goes back through Old French contenir to Latin continēre, to hold together or hold in. So the literal reading is close to the picture: it holds itself in.
這個字就是 self-（自己）＋ contained（被裝住的）。contain 經過古法文 contenir，來自拉丁文 continēre，意思是「一起握住、圍住」。所以字面讀起來，跟那個盒子的畫面幾乎是同一件事：它自己把自己圍住了。
Wiktionary entry supplied in this packet (source_ref kaikki:3f6f69a190036ae4:1251875468): 「From self- + contained」, with contain traced Latin continēre → Old French contenir → English contain.
Two branches
人：需要和情緒都收在裡面
把同一個盒子放到一個人身上，就得到這一支用法。他需要的東西、感覺到的東西，都留在自己那條線裡面，所以外面的人既看不太進去，也不會被他找上。
adjective · B2
Used about a person who seems complete on their own: they do not appear to need other people, and they do not show much of what they are feeling.
內斂自持的