(bǎo, ㄅㄠˇ) to defend; to protect; to insure or guarantee; to maintain; hold or keep; to guard; abbr. for Bulgaria [CE-DICT]
证
(zhèng, ㄓㄥˋ) certificate; proof; to prove; to demonstrate; to confirm; certificate; proof [CE-DICT]
平
(ひら;ヒラ) (n) (1) something broad and flat; palm of the hand; (2) common; ordinary; (3) (abbr) (See 平社員) low-ranking employee; freshman; novice; private [EDICT]
(píng, ㄆㄧㄥˊ) flat; level; equal; to tie (make the same score); to draw (score); calm; peaceful; level or even tone (i.e. first and second tones in classical Chinese); surname Ping [CE-DICT]