Self-containedness
沉默寡言（self-contained的名词形式）
🧩 词语组成解析
self
[self]
n. 自己;本人;本性;私利;
adj. 同一的;纯净的;单一的;
vt. 使自花授精;使近亲繁殖;
vi. 自花授精;
🗣️ 情景例句
He started with them almost forty years ago.
他在那里做了快四十年了。
You use the front door and I'll hit the back.
你从正门进去，我袭击后面。
That was a long time ago,wasn't it?
那是好久以前的事了。是吗？