Acknowledgments This work was financially supported by National Natural Science Foundation of China (31530009, 31500476, and 31890771), National Key Research and Development Program of China (2017YFD0600804), Young Elite Scientists Sponsorship Program by CAST (2016QNRC001), Outstanding Innovative Youth Training Program of Changsha (KQ1707019) and Hunan Provincial Technical Innovation Platform and Talent Program in Science and Technology (2018RS3092, 2018WK4028, and 2016TP1013).