(fèi, ㄈㄟˋ) to cost; to spend; fee; wasteful; expenses; surname Fei [CE-DICT]
用
(よう) (n,n-suf) (1) task; business; (2) use; duty; service; (3) (See 用を足す) call of nature; excretion; (P) [EDICT]
(yòng, ㄩㄥˋ) to use [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]