Homework! Thanks!

棋子在棋盘上僵硬如那些真人大小的兵马俑，手持缰绳、盾牌和剑，在失声的合唱中向皇帝宣誓。

The chess pieces (gambits?) on the chessboard were as stiff as the real-life size terracotta Warriors and Horses, with leashes, shields and swords in hands, swearing oaths in aphonic chorus to the Emperor.

aphonic is consulted online:_-)