Fractograph
断口组织(金属断面)的显微镜照片
🗣️ 情景例句
Is anybody hungry?
有人饿了吗？
I used to start working at 9:00 o'clock every day.
我过去常在9:00点钟开始每天工作。
When their father died, they thought it their duty to keep Eric in hiding.
父亲死后，他们兄弟俩认为有责任继续把埃里克藏起来。