Electronfractography
断口电子显微镜检验
🗣️ 情景例句
What are you up to?
你呢？你怎样？
The trees emit a fragrance of their own.
各种树木会发散各自独有的气味。
I don't envy him his money problems.
我庆幸自己没有他那些金钱的烦恼。