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
I wish we had brought Max.
我也希望带了Max来。
Old wood is best to burn, old book to read.
老柴好烧，老书宜读。
The most important factor in our environment is the state of our own minds.
我们环境中最重要的因素就是我们的思想状况。