Observation circuit
[计] 监视电路
🧩 词语组成解析
🗣️ 情景例句
What a lovely tradition!
多么可爱的传统
Let it be!
听天由命把！
Meanwhile, a microphone, which was lowered into the mine two hours ago, has enabled the men to keep in touch with their closest relatives.
与此同时，两个小时以前放下井去的一只麦克风使井下的人可以与其亲属保持联系。