Refractory hard metals
[机] 耐火硬金属
🧩 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;
五金
🗣️ 情景例句
Nowadays more and more people are without jobs.
现在越来越多的人失业。
It's not your fault.
不是你的错。
I find listening really hard. Sometimes it's just impossible to understand.
我觉得听力很难。有时简直听不懂。