I wrote, "I understand that is not easy". I was marked incorrect because I didn't write "it". If "it" is usually implied, then how do you know when to use it and when not to while translating?
To explain erdnaoluap's point a little more technically, you confused the use of "that" as a pronoun with "that" as a conjunction. "I understand that is not easy" really means "I understand that (THING) is not easy" rather than "I understand that it is not easy." In one, "that" describes a noun, while in the other, "that" joins "I understand" and "it is not easy." In Italian, these functions are served by different words (quello, quella, etc for the adjective/pronoun use and che for the the conjunction) so it's much more clear cut than it is in English.
I honestly would not have noticed that the sentence could be taken two ways until you explained it. I agree, +1 lingot.
You translated the sentence "Capisco quello non è facile", not the given sentence. That's why you got it wrong.
See? You wrote "Capisco quello non è facile" in english.
because "know" has a better word for it in italian, "so che non e' facile" :)
I am still confused on the difference in italian of "i know" versus "i understand."
There seems to be "I know" = "I am aware of," "I know" = "I understand," and "I know" = "I am acquainted with (a person)". What I don't capisco is why sometimes "capisco" translates to "I understand" and sometimes it translate to "I know," when in English those two are almost always interchangeable.
There can be a difference if we say, "I know the lyrics to the song, but I do not understand them." But with something like, "I know it isn't easy," and "I understand it isn't easy," those both mean exactly the same thing on every level in English.
Maybe your correcf (as you spelled correct) answer had a few spelling errors.
What is the purpose of the 'che' here. Would 'capisco non e facile' mean the same thing
"Capisco non è facile" would be syntactically incorrect, you need a pronoun to introduce "what thing" is not easy. Just like in Am. English you don't say "I understand it is not easy".