#DSE #Physics #generalgaslaw 💻 Online補習平台: https://marc-yam.teachable.com/ 2.1 Position and Movement 位置與移動: https://marc-yam.teachable.com/p/dse-physics-2-1-position-and-movement 2.2.1 Force and Motion 力與運動: https://marc-yam.teachable.com/p/dse-physics-2-2