Closed circuit signalling
[计] 闭路通信
🧩 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
[计] 信号传输法
🗣️ 情景例句
She's come up with a new idea for increasing sales.
她想出了增加销售量的主意。
Will you take that library book back for me?
你能帮我把书还回图书馆吗？
How's everything?
一切还好吧？