Heptode
n. 七极真空管\\n[电] 七极管
🗣️ 情景例句
This is terrible.
真是太糟了。
Does this bus go to the train station?
这辆公共汽车去火车站吗？
Good! That's done. Now the tree must be tied to the stick.
好的！做好了。现在该把树系在木棍上了。