My plan is go to Poland on the 21st of July by airplane. Bartosz Szymański and me will go to his city Zielona Góra which he is living in. I will stay at home of his parents and they will take care of me. I will stay most of time in Zielona Góra city. I will visit Bartosz Szymański's family and his friends, and we will explore the city. I will also visit Bartosz Szymański's family in Żary city. Likewise, we will visit his friends in Kraków. I swear I will abide by all outbound laws and local laws and will come back to China on August 25th. 谢谢大神~求回答~