Closed-circuit signaling
[电] 闭路发讯
🧩 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
n. 发信号；打信号
🗣️ 情景例句
You're right. We'll talk to her about it.
说得对。我们要跟她谈谈。
I don't mind staying up late.
我不在乎熬夜。
Are you a teacher?
你是教师吗？