Doubly closed tube
[电] 双闭管
🧩 词语组成解析
doubly
[['dʌbli]]
adv. 加倍地, 双重地\\n[计] 双地
closed
[klozd]
adj. 关闭着的，封闭着的;密闭着的，保密的;<美>准备好了的，定了契约的;
v. “close”的过去式和过去分词;
clos=close关闭+ed已...的→关闭了的
🗣️ 情景例句
Frankly, neither was I.
坦白的说 ，我当年也不好。
Do you think you could lend me some of your records/CDs?
请问你能借我几张唱片吗？
What a shame! Never mind, I'll write to him.
真遗憾！不要紧，我会给他写信的。