Hardness penetration
[机] 硬化深度
🧩 词语组成解析
hardness
['hɑrdnɪs]
n. 坚硬;<物>硬性;困难;冷酷;
penetration
[,pɛnɪ'treʃən]
n. 渗透;穿透;[军]突破;洞察力;
🗣️ 情景例句
How do you stay so young-looking?
你怎样保持如此年轻的？
Come what may, heaven won't fall.
船到桥头自会直。
That's a big box. Is it heavy? Please let me help you.
这是个大盒子。重吗？让我来帮你。