Closed-circuit system
[电] 闭路系统
🧩 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
I have been exposed to languages such as English, Spanish, and French.
我接触过英语、西班牙语和法语。
Let the hands get busy, not the mouth.
手要勤劳，嘴莫多说。
The following answer is subject to official confirmation.
以下的答案必须再经过正式确认才有效。