Signaling key
[电] 发讯电键
🧩 词语组成解析
n. 发信号；打信号
key
[kiː]
n. 钥匙;（打字机等的）键;关键，线索，秘诀;（音乐的）调;
vt. 键入;锁上;调节…的音调;提供线索;
vi. 使用钥匙;
adj. 关键的;主要的;
🗣️ 情景例句
It's crowded in here.
这里太挤了。
You think too much.
你想太多了。
I was angry because they were late.
我生气，因为他们迟了。