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
Do you own your house or do you rent?
你们自己有房子还是租房子？
I'm stuffed.
我快撑死了！
The factory has been there for several years.
这家工厂在那儿已有好几年了。