wèi / jiā / qiáng / biān / fáng / shù / qiān / míng / shì / bīng / bèi / yí / tún / dào / běi / fāng / yào / sài为加强边防,数千名士兵被移屯到北方要塞。To strengthen the border defense, several thousand soldiers were transferred to garrison a northern fortress.