1011309:there is a study designed to examine the impact of internet addiction on youth's school performance.
问题描述：
1011309:there is a study designed to examine the impact of internet addiction on youth's school performance.
想知道的语言点：
1—study designed：怎么翻译
2—youth's school performance：怎么翻译
答
1 是study which is designed 意思是 为……的研究
2 学生的学校表现