C, Öظ´(restating)
In other words          that is to say                to put it simply

תÕÛ(but)Àà

A, ±È½Ï/¶Ô±È(contrasting)

Conversely             in comparison               in contrast to this
Instead                nevertheless                 on the contrary
On the other hand        ¡­ whereas¡­               ¡­ while/whilst

B, Èò½(conceding)

Afeter all               all the same                 even if
Although/though/even though  however                 still
In spite of / despite this/ that    nevertheless              nonetheless
yet