Fractography
n. 金属断面的显微镜观察\\n[医] 参差表面描绘术
🗣️ 情景例句
It's getting late, and we have a bit of a drive.
已经晚了， 而我们还要开好一段路呢。
Don't worry! It's nothing.
不要紧，没什么事。
How do you do?
您好！