"Again, since one of the big questions high school seniors must consider is 'What makes you unique?,' having an uncommon extracurricular activity vs. a conventional one is an advantage," he wrote in an email.
"再次,由于高中毕业生必须考虑的重大问题之一是‘什么使你独特?’,拥有一项不常见的课外活动而非传统的活动是一种优势,"他在一封电子邮件中写道。
由"since"引导的原因状语从句,说明下文结论的原因。从句内部主语是"one of the big questions",谓语是"is",表语是引号内的疑问句"What makes you unique?"。从句中还嵌套了一个定语从句"high school seniors must consider"修饰"questions"。