x No Plagiarism!cmWVXiBQ3lxUaC5Lk6qOposted on PENANA 地球的重力加速度是9.8,心裡的重力加速度,無盡。8964 copyright protection194PENANANdUDDxPjvD 維尼216.73.216.39ns216.73.216.39da2