Scintillation Velocity and Arc Observations of FRB 20201124A oleh Ziwei Wu, Weiwei Zhu, Bing Zhang, Yi Feng, JinLin Han, Di Li, Dongzi Li, Rui Luo, Chenhui Niu, Jiarui Niu, Bojun Wang, Fayin Wang, Pei Wang, Weiyang Wang, Heng Xu, Yuanpei Yang, Yongkun Zhang, Dejiang Zhou, Yuhao Zhu, Can-Min Deng, Yonghua Xu, FAST FRB Key Science Project