(yào, ㄧㄠˋ) important; vital; to want; to be going to; must [CE-DICT]
考
(こう) (n) (1) thought; (n-suf) (2) report on one's investigation into ...; (3) deceased father [EDICT]
(kǎo, ㄎㄠˇ) to check; to verify; to test; to examine; to take an exam [CE-DICT]
土
(ど) (n) (1) (abbr) (See 土曜) Saturday; (2) (See 五行・1) earth (third of the five elements) [EDICT]
(に) (n) (arch) soil (esp. reddish soil) [EDICT]
(つち(P);つし(地)) (n) (1) earth; soil; dirt; (2) the earth (historically, esp. as opposed to the heavens); the ground; the land; (3) (See 鳥の子紙) low-quality torinoko-gami (containing mud); (4) (also written as 犯土, 椎, 槌) (See 陰陽道) (period of) refraining from construction in the direction of the god of the earth (in On'youdou); (P) [EDICT]