separate:مجزا،جداگانه

protect: نگهداری کردن ،محافظت کردن،پشتیبانی کردن substitute:جانشین hesitate:شک کردن seperate:جدا کردن advanced:پیشرفته

متشکرم is formal (read mochakeram) . if you want to speak someone with respect. مرسی یا ممنون is informal .if you want to have a conversation with your friend , you can use it. infact its same. take it easy

maybe this link help you :D http://www.easypersian.com/farsi/lesson-37/

این سایت ها کتاب به صورت پی دی اف ارایه میکنن: www.parsbook.org www.irpdf.com www.98ia.com ولی خودم بهتون رمان ایرانی دالان بهشت رو پیشنهاد میکنم http://bookmarket2012.blogfa.com/post/36

siavash ghomayshi - imagine imagine ! if its hard to imagine a world that each person is truly fortunate imagine a world where money race, and power have no place A world where riot police is not the answer to the calls for unity A world with no nuclear bombs, no artillery, and no bombardments A world where no child will leave his legs on land mines Everybody free, totally free . No one in pain, no pain You wouldn't read in newspapers that Such and such person committed suicide