it. It was a recorder.when Ye Ling went to the hospital to provoke Wen Lan, she took the opportunity to install a bug in Wen Lan's hair.the conversation between Wen Lan and Grandpa Gu was recorded on...Lu Kun, and his eyes lit up. He was really happy. It seems that that friend is very important to her."Lu Jing, let me tell you about this problem. It involves geometric three-dimensional thinking and...