Hardness limit
[化] 硬度极限
🧩 词语组成解析
hardness
['hɑrdnɪs]
n. 坚硬;<物>硬性;困难;冷酷;
🗣️ 情景例句
Don't be so grumpy.
别总这么爱抱怨。
I fear the Greeks, even when bringing gifts.
敌人献礼品，千万莫轻信。
He suggested that a double railway-tunnel should be built.
他提议建一条双轨隧道，这样就解决了通风问题。