unlike many diseases which can be diagnosed just with good memory of the pathology and presenting symptoms/signs etc.- but not much thinking (of coz I dun mean they are easy...we are all in a process of repeated recitation and forgetting)....dun,

问题描述:

unlike many diseases which can be diagnosed just with good memory of the pathology and presenting symptoms/signs etc.- but not much thinking (of coz I dun mean they are easy...we are all in a process of repeated recitation and forgetting).
...
dun,

don't

Don't的口语化书写形式.
跟前面的coz代表because一个道理.