Heptode
n. 七极真空管\\n[电] 七极管
🗣️ 情景例句
She was in love with Donald McGrath,
她爱上了Donald McGrath，
Bare words,no bargain.
空言不能成交易。
The Ambassador's wife went on asking questions, when she suddenly noticed a big hole in her husband's hat.
大使夫人继续提出问题，她突然又发现丈夫的帽子上有个洞。