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
but in the end the voters will have to decide.
但最后却要由选民来决定。
Most of them are less than 30.
他们中大多数不到30岁。
That is our peak season.
下个月是我们的旺季。