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
I'm glad to make you acquaintance.
我很高兴认识你。
I'll play it by ear.
我将随兴而定。
In September 1888 at the age of 19, he sailed to England and after three years' study became a lawyer.
1888年9月，他19岁时乘船去了英国，并在3年的学习之后成为一名律师。