Selective relay
[电] 选择性继电器
🧩 词语组成解析
selective
[si'lektiv]
adj. 精心选择的;选择的，不普遍的;淘汰的;
relay
[rɪ'lɛi]
n. 接替人员，替班;传递;接力赛;继电器;
vt. 转播，传达;用驿马递送，使接替;分程传递;
🗣️ 情景例句
What is it?
那是什么？
I have great difficulty in understanding him.
我觉得很难理解他。
Look! It's inside another pot. What was that pot used for?
“瞧！还是大壶套小壶呢。有什么用途？”