保底

to break even / to guarantee a minimum (salary etc)

(equivalent to 的 as possessive particle)

background / bottom / base / end (of the month, year etc) / remnants / (math.) radix / base

Bulgaria / Bulgarian / abbr. for 保加利亞|保加利亚[Bao3 jia1 li4 ya4]

to defend; to protect; to keep / to guarantee; to ensure / civil administration unit in the baojia 保甲[bao3 jia3] system (old)