原因是他没有提前申请，所以错过了名额。
The reason is that he didn't apply in advance, so he missed the quota.
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reason英 /ˈriːzən/|美 /ˈrizən/
解释
"The reason is that..." 引出原因解释。"reason" 前置作为焦点名词，that 从句提供具体的理由说明。
The reason is that he didn't apply in advance, so he missed the quota.
"The reason is that..." 引出原因解释。"reason" 前置作为焦点名词，that 从句提供具体的理由说明。