Scrathc hardness test
[机] 刮痕硬度试验
🧩 词语组成解析
hardness
['hɑrdnɪs]
n. 坚硬;<物>硬性;困难;冷酷;
🗣️ 情景例句
When you go to a new school it takes a while to know the ropes.
到一所学校读书要花一段时间熟悉情况。
Drought
干旱
He suddenly appeared in the party.
他突然在晚会上出现了。