长治久安

long-term peace and stability (of governments)

length / long / forever / always / constantly

chief / head / elder / to grow / to develop / to increase / to enhance

(long) time / (long) duration of time

surname An

(bound form) calm; peaceful / to calm; to set at ease / safe; secure; in good health / content; satisfied (as in 安於|安于[an1 yu2]) / to place (sb) in a suitable position (job) / to install; to fix; to fit / to bring (a charge against sb) / to harbor (certain intentions) / ampere (abbr. for 安培[an1 pei2])

to rule / to govern / to manage / to control / to harness (a river) / to treat (a disease) / to wipe out (a pest) / to punish / to research

Changzhi prefecture-level city in Shanxi 山西[Shan1 xi1] / Changchih township in Pingtung County 屏東縣|屏东县[Ping2 dong1 Xian4], Taiwan