Nentode
五极管(电子管)
🗣️ 情景例句
It's locked.
它锁着。
I'm looking for a part-time job to help put me through school.
为了使我能够从学校毕业，我正在找兼职工作。
The officer unscrewed the cap and put the bottle to his nostrils.
海关官员拧开瓶盖，把瓶子放到鼻子底下。