他一方面对未来充满希望，另一方面对未来会发生什么又有点担心。
On the one hand, he is hopeful/full of hope about the future, but on the other hand, he is a bit worried about what will happen in the future.
他一方面对未来充满希望，另一方面对未来会发生什么又有点担心。
On the one hand, he is hopeful/full of hope about the future, but on the other hand, he is a bit worried about what will happen in the future.
