There's a teaching volunteer acceptance letter, along with a teaching training certificate, a student ID card from Renmin University of China, and some clothing. There's also a small metal box and a large one, a bunch of bottles and cans, some black and white thread, and some other books...,This sentence means that you should not use bizarre and unfounded speculations to guess at things that are difficult to understand.,Zhao Jun persisted, he certainly didn't want to become blind.。