Reversing key
[电] 换向电键
🧩 词语组成解析
a. 回动的\\n[化] 换向
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
He told me to call him about my project,
他叫我打电话给他， 跟他谈我的作品计划，
All things are difficult before they are easy.
凡事必先难后易。
Yes. We've just heard a warning on the radio that a hurricane is likely to come.
是的，我们刚从广播里听到一则气象警报，说是一场飓风可能要到来。