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
Miss Pappas?
Pappas小姐
About how long does it take?
大约要坐多久？
but when she got out at her own floor, both were forgotten in her sudden discovery that her front door was open.
但她到自己的楼层走出电梯后，就把这两件事忘了个干净，因为她突然发现她家的大门开着。