✔ 最佳答案
If如果and unless除非 do not usually appear in the same sentence as they have close meanings and are used in similar ways. Usually we use either 'if' or 'unless in a sentence.
However, to answer your question:. how to 'If...unless..." .
Here is an example:
If I were a chicken, unless my wings grew larger, I could not fly.
In this sentence If....unless are used to give two different but related conditions.
Try to contruct your 'If....unless...' sentence modelling my example.
2008-10-25 08:09:52 補充:
To 004 Akit,
Your attempt to model on a 'If...unless' is a good try. Well done!
I think crystal can also do the same.