carburized metal
基本释义
渗碳金属
实用场景例句
家庭生活
The eldest son took on the responsibility of caring for his disabled sister.
长子承担起照顾残疾妹妹的责任。
校园生活
As the eldest student in the class, she was chosen to lead the project.
作为班上年龄最大的学生，她被选来领导项目。
社会评论
In some cultures, the eldest child is given special privileges by tradition.
在一些文化中，传统上长子会获得特殊特权。
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