在这些人中还有特选的七百精兵能左右开弓个个能用机弦抛石毫厘不爽
Among these people, there are seven hundred specially selected elite soldiers who can strike arrows from both sides, each capable of throwing stones with the bowstring without the slightest error
以上为机器翻译结果，长、整句建议使用 人工翻译 。