(せん) (adj-no,n) (1) former; previous; old; (n) (2) first move (in go, shogi, etc.); opening move [EDICT]
(さき) (n,adj-no,n-suf,pref) (1) previous; prior; former; some time ago; preceding; (2) point (e.g. pencil); tip; end; nozzle; (3) head (of a line); front; (4) ahead; the other side; (5) the future; hereafter; (6) destination; (7) the other party; (P) [EDICT]
(xiān, ㄒㄧㄢ) early; prior; former; in advance; first [CE-DICT]
(xiàng, ㄒㄧㄤˋ) direction; orientation; to face; to turn toward; to; towards; shortly before; formerly; to side with; to be partial to; all along (previously); surname Xiang [CE-DICT]
保
(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]
你
(nǐ, ㄋㄧˇ) you [CE-DICT]
这
(zhè, ㄓㄜˋ) this; these; (commonly pronounced zhei4 before a classifier, esp. in Beijing) [CE-DICT]
是
(これ) (pn) (1) (uk) (See 何れ・1,其れ・1,彼・あれ・1) this (indicating an item near the speaker, the action of the speaker, or the current topic); (2) (hum) this person (usu. indicating someone in one's in-group); (3) now; (4) (arch) here; (5) (arch) I (me); (6) (arch) certainly; (P) [EDICT]
(ぜ) (n) righteousness; justice; right [EDICT]
(shì, ㄕˋ) is; are; am; yes; to be [CE-DICT]
为
(wéi, ㄨㄟˊ) as (in the capacity of); to take sth as; to act as; to serve as; to behave as; to become; to be; to do [CE-DICT]