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
A good medicine tastes bitter.
良药苦口，忠言逆耳。
All measurements of each case must not exceed 1.5m*1m*1m.
每只木箱体积不应超过1。5m*1m*1m。
What is it like there?
那儿怎么样？