Thank you3271963 for your help in the previous programs！

Thank you3271963 for your help in the previous programs! Basically I understand the main idea of the coversations, but I am still not certain about some words that I am not familiar with, even some sentences. Listen repeatedly will do the trick, that is right, but for words that haven't been saved in my brain database, I still have a hard time understanding. Thank you again! Have a good day!