Give two reasons language development is one of the most difficult skills for toddlers learn

One reason is that their young and their brain is developing so it may be hard for them to process developing a language. Another reason is that a toddler hasn't had much experience so, its also hard  for them to say words especially big words

two reasons being that it may contribute to a disorder or be a symptom of a disorder such as , hearing loss, pstchological deprivation or autism. the othe factor could be a related to the mentel development and makeup of that child. This is to give you an idea, and glad to help :3

answer///cannot be totally predicted;