Electronfractography
断口电子显微镜检验
🗣️ 情景例句
What do you often eat for supper?
你晚饭通常吃什么？
See you again.
再见。
Last week, my four-year-old daughter, Sally, was invited to a children's party.
上周，我4岁的女儿萨莉被邀请去参加一个儿童聚会。