Hardness number
[医] 硬度数
🧩 词语组成解析
hardness
['hɑrdnɪs]
n. 坚硬;<物>硬性;困难;冷酷;
🗣️ 情景例句
Yeah!
是啊！
His finger is wounded, Does it hurt?
他的手指受伤了，疼不疼？
Many firms, for instance, have great difficulty in obtaining technical or scientific books from libraries
比如，很多公司向图书馆借阅科技书籍时感到很困难，