Pentagrid tube
[电] 五栅管
🧩 词语组成解析
n. 五栅管, 七极管
🗣️ 情景例句
Her illness kept her in bed for a week.
她因生病而在床上躺了一星期。
John's parents will rejoice at his safe return.
约翰的双亲会因他的安然归来而惊喜万分。
I have to raise some issues which may be embarrassing.
我必须提出一些比较尴尬的问题。