一個高中英語語法Tom spent 4 years in college,during which time he le

題目：

一個高中英語語法
Tom spent 4 years in college,during which time he learned French.
這應該是個非限制性定語從句,但這用法怎麼這麼奇怪呀~which在從句中作的是定語嗎?疑惑ing 前面怎麼還有個during?

解答：

沒錯,這是個非限制性定語從句.先行詞是4 years,引導詞是 which ,during 以前置,原語序爲Tom spent 4 years in college,which time he learned French during.這樣顯得句子不平衡,故前置了.