(いしゃ) (n) (sens) (usu. 医者さん or お医者さん) (See お医者さん,医者さん) (medical) doctor; physician; (P) [EDICT]
って
() (prt) (abbr for というのは and other similar combinations) casual quoting particle; (P) [EDICT]
() (prt) (1) indicates emotional closeness or annoyance with someone; (2) indicates an indirect command by expressing annoyance (in sentence-final position) [EDICT]
役に立つ
(やくにたつ) มีประโยชน์ ช่วยได้มาก [LongdoJP]
(やくにたつ) (v5t) to be helpful; to be useful; (P) [EDICT]
ない
() (exp) (1) (See ませんか) (used to ask a question in the negative) won't (hasn't, isn't, doesn't, etc.); (2) (used to make invitations, express desires or give indirect commands) won't you [EDICT]
() (conj,aux) (1) (See ない) without doing ...; (aux) (2) used in sentence-final position as an indirect prohibition [EDICT]
(内) (suf) inside; within [EDICT]
(亡い) (adj-i) (See 無い) dead [EDICT]
(無い) (adj-i) (1) (uk) (See 亡い) nonexistent; not being (there); (2) unpossessed; unowned; not had; (3) (See またとない) unique; (4) (as ...ことがない, etc.) indicates negation, inexperience, unnecessariness or impossibility; (aux-adj) (5) (See ない) (after the ren'youkei form of an adjective) not ...; (6) (after the -te form of a verb) to not be...; to have not ...; (P) [EDICT]