Core hardness
[机] 砂心硬度
🧩 词语组成解析
core
[kɔ:]
n. 中心，核心，精髓;果心，果核;[地质学]地核;[计] 磁心;
vt. 去（果）核，挖去…的果心;提取岩芯（样品）;
hardness
['hɑrdnɪs]
n. 坚硬;<物>硬性;困难;冷酷;
🗣️ 情景例句
What's bugging you?
你正烦什么？
I get to work at nine o'clock every morning.
我每天早上9点钟上班。
That's sensational news,isn't it, Kate?
凯特，这真是条轰动的消息，是不是？