Vickers
n. 维氏硬度计
🗣️ 情景例句
You're very lucky to have a caring family.
你很幸运有一个温馨的家庭。
I know the boy whose father is a scentist.
我知道那个男孩的父亲是科学家。
Our knowledge of the universe is growing all the time.
我们对宇宙的认识一真在增长。