我亲爱的朋友，祝你旅途愉快。

My ___dear friend, have a good trip.

这辆自行车对我来说很珍贵，因为它是我爷爷的。

This bicycle is very ___dear to me because it was my grandpa's.

她是我非常珍爱的朋友。

She was a very ___dear friend.