Leddicon
铝靶管, 氧化铝视象管, 雷迪康管
🗣️ 情景例句
It's five years ago.
那是五年前了。
But this doesn't mean that Mr. Li is a bookworm.
但这并不意味着李先生是个书呆子。
I don't know whether you care to answer right away.
我不知道你是否愿意立即回答。