Most first-year studentwelcome this increased independence, thoughmany also find that living away from home, family, and friends can introduceunexpected challenges.
请问这里的though可否换成but？
Most first-year students welcome this increased independence, though many also find that living away from home, family, and friends can introduce unexpected challenges.
Most first-year students welcome this increased independence, but many also find that living away from home, family, and friends can introduce unexpected challenges.
比较发现，though 换成 but 不只意味着结构发生了变化，即由原来的从句变成并列分句，重点是句意发生了主、次颠倒。前句，信息表达的重点在主句上面；后句，信息重心在 but 分句上面。
