我尝试使用后面的命令将单词“Capítulo”（葡萄牙语）更改为“Chapter”，%但没有效果。
\documentclass[ruledheader]{abnt_UFF}
%\renewcommand{\chaptername}{Chapter}
\usepackage[english]{babel}
\usepackage[latin1]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{epsf}
\usepackage[dvips]{epsfig,graphicx}
\usepackage{subfigure}
\usepackage{scalefnt}
\usepackage{latexsym}
\usepackage{textcomp}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{algpseudocode,algorithm}
\algrenewcommand\algorithmicend{\textbf{fim}}
\algrenewcommand\algorithmicdo{\textbf{faça}}
\algrenewcommand\algorithmicwhile{\textbf{enquanto}}
\algrenewcommand\algorithmicfor{\textbf{para}}
\algrenewcommand\algorithmicif{\textbf{se}}
\algrenewcommand\algorithmicthen{\textbf{então}}
\algrenewcommand\algorithmicelse{\textbf{senão}}
\algrenewcommand\algorithmicreturn{\textbf{devolve}}
\algrenewcommand\algorithmicfunction{\textbf{função}}
\algrenewtext{EndWhile}{\algorithmicend\ \algorithmicwhile}
\algrenewtext{EndFor}{\algorithmicend\ \algorithmicfor}
\algrenewtext{EndIf}{\algorithmicend\ \algorithmicif}
\algrenewtext{EndFunction}{\algorithmicend\ \algorithmicfunction}
\newcommand{\cluster}{\textit{cluster}}
\newcommand{\clusters}{\textit{clusters}}
\floatname{algorithm}{Algoritmo}
\usepackage{url}
\usepackage{longtable}
\usepackage{lscape}
\usepackage{colortbl}
\usepackage{multicol}
\usepackage{multirow}
\usepackage{rotating}
\hyphenation{
a-de-qua-da-men-te
di-men-sio-na-men-to
}
\renewcommand{\ABNTchapterfont}{\bfseries\fontfamily{cmr}\fontseries{b}\selectfont}
\renewcommand{\ABNTsectionfont}{\bfseries\fontfamily{cmr}}
\pagestyle{ruledheader}
\setcounter{page}{1}
\pagenumbering{arabic}
%\makeatletter
%\renewcommand{\@chapapp}{Chapter}
%\makeatother
%\renewcommand{\chaptername}{Chapter}
\chapter{Introduction}
> \chapter=\long macro:
->\if@openright \cleardoublepage \else \clearpage \fi \thispagestyle {\chaptert
itlepagestyle } \ifthenelse {\boolean {ABNTinpretext}}{\ifthenelse {\boolean {A
BNTaftertoc}}{\setboolean {ABNTinpretext}{false}\ABNTBeginOfTextualPart }{}}{}\
global \@topnum \z@ \@afterindentfalse \secdef \@chapter \@schapter .
l.117 \show\chapter