Hard tube
[电] 硬性电子管
🧩 词语组成解析
hard
[hɑrd]
adj. 困难的;硬的;有力的;努力的;
adv. 努力地;猛力地;严重地;沉重地;
n. 英〉硬海滩，登陆处;
🗣️ 情景例句
Have you had dinner yet?
你吃晚饭了吗？
Modesty is the ornament of woman.
端庄可为妇女增添光彩。
Oh, wise young judge!
噢，聪明年轻的法官啊！