(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]
(qǐng, ㄑㄧㄥˇ) to ask; to invite; please (do sth); to treat (to a meal etc); to request [CE-DICT]
到
(dào, ㄉㄠˋ) to (a place); until (a time); up to; to go; to arrive [CE-DICT]
洞
(うろ) (n) hollow; cavity; hole [EDICT]
(ほら) (n) cave; den; grotto; (P) [EDICT]
(dòng, ㄉㄨㄥˋ) cave; hole; zero (unambiguous spoken form when spelling out numbers) [CE-DICT]
中
(じゅう;ぢゅう) (suf) (1) through; throughout; in the course of; (2) all over or throughout (e.g. a place) [EDICT]
(ちゅう) (suf) (1) (See 並・1) medium; average; middle; (2) moderation; (3) (abbr) (See 中一,中学校) middle school; (4) (abbr) (See 中国・1) China; (n-suf) (5) (See 中・じゅう・2) in; out of (e.g. three out of ten people); (6) (See 話し中) during (a certain time when one did or is doing something); under (construction, etc.); while; (P) [EDICT]