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
Of course not.
当然不是
God helps those who help themselves.
自助者天助之。
Well, that pair looks nice. How much do they cost?
嗯，那双看来不错。多少钱？