chinese... there's the TONE, PRONUNCIATION (as for Pinyin) and the complex CHARACTERS. :)

Any language that has 'character' in place of letters. You have to learn to recognize the character and what they mean as well as grammer, pronunciation, vocabulary, ect...

i add a point to ♫ ΣПЯIQЦΣDΛ ♫ . but just in chinese and russian. a_a. because i'm a native arabic speaker and korean is fun to learn it. o_o. chinese have so many caracters.wowwwwwwwwww!

chinese!!! XD well, actually everything that im not familiar ... its all difficult .. hahah

Languages that have different alphabeths from Latin, such as Arabic, Russian, Chinese, Korean, Greek and so on.