部分的英語翻譯：

part; section; portion; proportion; sect; segment; share
【計】 division; element
【醫(yī)】 binary division; fraction; mero-; pars; part; Partes; portio; portiones

頭的英語翻譯：

beginning or end; cobbra; conk; crumpet; end; first; garret; hair; head
leading; nob; noddle; pate; sconce; side; top; twopenny
【醫(yī)】 capita; caput; cephal-; cephalo-; head; kephal-; kephalo-