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 type of visa have you got?
您持的是哪种签证？
Grain by grain and hen fills her belly.
一粒一粒啄米，母鸡填饱肚皮。
Visitors have been asked to keep the woods clean and tidy.
游客已被告知要保持树林的整洁。