Pentatron
[电] 五极二屏管
🗣️ 情景例句
We have to work hard to get people interested in politics.
我们必须努力使人们对政治感兴趣。
I agree. I wish it were quicker.
是这样，我希望它能快一点。
Once he had done this, he had been able to turn on the supply.
一旦他接上了接头，他就能够打开供气阀。