Heptode
n. 七极真空管\\n[电] 七极管
🗣️ 情景例句
Thank you.
谢谢。
What beautiful trees those are!
那些是多么美丽的树呀！
Harry went on to explain that 'myrolite' was a hard, amber-like substance which could be used to remove freckles.
哈里便进一步解释“密诺莱特”是一种质地坚硬、状似琥珀的东西，可以用来除去雀斑。