减少: to lessen, to decrease, to reduce, to lower...
长江: Yangtze River, or Chang Jiang...
式: type, form, pattern, style...
学说: theory, doctrine...
葬: to bury (the dead), to inter...
以致: to such an extent as to, down to, up to...
瞒: to conceal from, to keep (sb) in the dark...
直到: until...
树林: woods, grove, forest...
天: day, sky, heaven...