我很喜欢这个礼物，然而它太贵了。

I really like this gift; ___however, it's too expensive.

这本书很有趣，然而有点难懂。

This book is interesting; ___however, it's a bit difficult to understand.

这是一种可能的解决办法。然而，还有其他办法。

This is one possible solution. ___However, there are others.