Closed-loop system
[计] 闭环系统
🧩 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
loop
[lup]
n. 圈，环;[医]宫内避孕环;回路;弯曲部分;
vt.& vi. （使）成环，（使）成圈;以环连结;使翻筋斗;
🗣️ 情景例句
Rolexes! Are you joking? That's far outside my price range!
劳力士？！别开玩笑了！那可远超过我的预算了。
It took me an hour to walk there.
走到那里花了我一小时。
The boy was too nervous to speak.
那男孩紧张得说不出话来。