Closed system
[计] 闭合系统\\n[化] 封闭系统
🧩 词语组成解析
closed
[klozd]
adj. 关闭着的，封闭着的;密闭着的，保密的;<美>准备好了的，定了契约的;
v. “close”的过去式和过去分词;
clos=close关闭+ed已...的→关闭了的
🗣️ 情景例句
That's it.
是的。
What will you do about it?
你会拿这事怎么办？
I know that one of the towers is on the top of a hill, but the rest of the buildings are easy to get to.
我知道其中有个塔在山上，但其余的建筑物都并不难上。