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
How many brothers and sistes do you have?
你有多少个兄弟姐妹？
Scornful dogs will eat dirty puddings.
神气的狗也会吃赃布丁的。
It's odd that they didn't reply our letter.
他们没有给我们回信，这真奇怪。