Macrofractography
断口低倍检验, 断口宏观检验
🗣️ 情景例句
Good-bye.
再见。
There are more foolish buyers than foolish sellers.
愚蠢的买主多鱼愚蠢的卖主。
Sorry. I had a little, but I don't feel like eating.
对不起。我吃了一点儿，我不想吃。