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
Yes, they do.
是的 ，花儿好香。
If there's anything else I can do, please call on me.
如果有任何事情我能效劳的话，请打电话给我。
I'm poor, but I always enjoy myself! he said. I don't know why!
“我很穷，但我总是过得很愉快！”他说，“我不懂为什么！”