Hardness ageing
[化] 硬度时效; 冷作时效; 机械时效
🧩 词语组成解析
hardness
['hɑrdnɪs]
n. 坚硬;<物>硬性;困难;冷酷;
ageing
[['eidʒiŋ]]
n. 变老, 成熟\\n[化] 老化; 陈化; 老成; 熟化; 时效
🗣️ 情景例句
It's too hard to explain.
这很难解释清楚。
On a crowded train, one comes in contact with many people.
在拥挤的火车里面，会和许多人接触。
Shall I make an appointment to see him?
我是不是要约个时间跟他见见面？