waht exatcly is the main weakspots to speaking or writing in Madarin? is it the sudden change in the tone, auido level and so on? if so I would be more then greatful, if someone could tell me what the differnce between 五 (five) and 我 (I) and 和 (and) 很 (very) 喝 (drink) is, and if you have any adivice to give me about thorisem in Sothern China go rigth ahead.