(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]
走
(そう) (suf) run; race [EDICT]
(zǒu, ㄗㄡˇ) to walk; to go; to run; to move (of vehicle); to visit; to leave; to go away; to die (euph.); from; through; away (in compound verbs, such as 撤走); to change (shape, form, meaning) [CE-DICT]
啦
(lā, ㄌㄚ) (onomat.); (phonetic) [CE-DICT]
(la, ㄌㄚ˙) (an auxiliary word performing the grammatical functions of mood); fusion of le + a; follows after 比如 listed examples [CE-DICT]