Knoop
努普显微压痕硬度试验仪
🗣️ 情景例句
She's smart and sensitive for her age.
就这样的年龄来说 ，她很聪明而且懂事。
To give her candy
给她糖果
People are always talking about 'the problem of youth'.
人们总是在谈论“青年问题”。