Sector condu-ctor
[电] 扇形导体
🧩 词语组成解析
🗣️ 情景例句
He keeps himself fit by running 5 miles every day.
他每天跑五公里以保持身体健康。
Can you do me a favour?
您能帮我个忙吗？
You'll be sorry.
你会后悔的。