.Looking at these problems, Su Cen doesn't necessarily understand them all instantly; however, he did study advanced mathematics during his high school and university years, which is based on a profou...轉碼失敗！請您使用右上換源切換源站閱讀或者直接前往源網站進行閱讀！, the classic blue screen straight phone. After getting mobile phones, their communication naturally became closer, as sending text messages had become fashionable nationwide. Su Tang couldn't be exem...