Heptode
n. 七极真空管\\n[电] 七极管
🗣️ 情景例句
And the show will help promote it.
而这次展览会有利于促销它。
A tall tree catches the wind.
树大招风。
Scientists discovered that this particular variety of rabbit (and apparently no other animal)
科学家们发现，这种特殊品种的兔子（显然不包括别的动物）