x No Plagiarism!eP2DkK9X79Y6XZ35qXe7posted 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 protection168PENANAFKEqKO1SqZ 維尼18.118.212.165ns18.118.212.165da2