我正在 Overleaf 中撰写一篇论文，其中用到了很多引文。为了很好地输出这些引文，我决定使用以下\blockquote命令：\usepackage{csquotes}
{\footnotesize\blockquote[\citet{source}]{quote} \par }
这几乎总是输出相同的好看的引文，除了某些块引用没有从文本中脱颖而出的情况。
下面是一个使用 SC 输出的工作示例。错误的输出是中间的引文，无论我将它放在文本中的什么位置，它都会输出错误。
\documentclass[11pt, twocolumn]{paper}
\usepackage[natbib=true, style=authoryear-comp]{biblatex}
\usepackage{filecontents}
\usepackage{csquotes}
\usepackage{lipsum}
\begin{filecontents*}{database.bib}
@article{Kanlantari2018,
author = {Kanlantari, Fatemeh},
year = {2018}
}
@article{Benke2017,
author = {Benke, K and Tomkins, B},
year = {2017}
}
@article{Al-chalabi2015,
author = {Al-chalabi, Malek},
year = {2015}
}
\end{filecontents*}
\bibliography{database.bib}
\begin{document}
\lipsum[1]
{\footnotesize \blockquote[\citet{Kanlantari2018}]{As the world population continues to grow at a rapid rate, accompanied by a substantial
growth in food demand which is expected to transpire in the next 50 years, 80\% of the population will be living in urban areas} \par }
{\footnotesize \blockquote[\citet{Al-chalabi2015}]{It is predicted that the world population will reach 9 billion by 2050, of which 70\% will live in urban centres.}\par }
{\footnotesize \blockquote[\citet{Benke2017}]{The unremitting trends of increasing population, urbanization, diminishing water supply, and continuing climate change have contributed to declining stocks of arable land per person. }\par }
\lipsum[2]
\printbibliography
\end{document}
我的文档中有几个引文的输出很奇怪，我正在寻找我做错的地方。
也欢迎任何强力修复，我还没有成功使用简单\vspace和\hspace。
答案1
文档csquotes对该命令的解释\blockquote如下
\blockquote[<cite>][<punct>]{<text>}<tpunct>此命令确定 的长度<text>。如果长度超过某个阈值， 将<text>在显示模式下排版，即作为块引用。如果没有，\blockquote则将表现为\textquote。
因此，结果很容易解释，因为第二个引文没有超过设定的阈值，而第一个和第三个则超过了。（如果排版，默认设置会检查文本是否长于三行。）
您可以将其设置threshold为零，以使它\blockquote始终以块引用的形式出现。令人惊讶的是，没有选项可以禁用threshold测试，也没有专用的“始终块引用”命令csquotes。
\documentclass[11pt, twocolumn]{article}
\usepackage[threshold=0]{csquotes}
\usepackage[natbib=true, style=authoryear-comp]{biblatex}
\usepackage{lipsum}
\bibliography{biblatex-examples.bib}
\begin{document}
\lipsum[1]
{\footnotesize \blockquote[\citet{sigfridsson}]{As the world population continues to grow at a rapid rate, accompanied by a substantial
growth in food demand which is expected to transpire in the next 50 years, 80\% of the population will be living in urban areas} \par }
{\footnotesize \blockquote[\citet{sigfridsson}]{It is predicted that the world population will reach 9 billion by 2050, of which 70\% will live in urban centres.}\par }
{\footnotesize \blockquote[\citet{sigfridsson}]{The unremitting trends of increasing population, urbanization, diminishing water supply, and continuing climate change have contributed to declining stocks of arable land per person. }\par }
\lipsum[2]
\printbibliography
\end{document}
csquotes自动添加可能会更优雅\footnotesize。对于引用，您还可以考虑使用\blockcquote。
\documentclass[11pt, twocolumn]{article}
\usepackage[threshold=0]{csquotes}
\usepackage[natbib=true, style=authoryear-comp]{biblatex}
\usepackage{lipsum}
\newenvironment{footnotesizequote}
{\quote\footnotesize}
{\endquote}
\SetBlockEnvironment{footnotesizequote}
\SetCiteCommand{\autocite}
\bibliography{biblatex-examples.bib}
\begin{document}
\lipsum[1]
\blockcquote{sigfridsson}{As the world population continues to grow at a rapid rate, accompanied by a substantial
growth in food demand which is expected to transpire in the next 50 years, 80\% of the population will be living in urban areas}
\blockcquote{sigfridsson}{It is predicted that the world population will reach 9 billion by 2050, of which 70\% will live in urban centres.}
\blockquote[\citet{sigfridsson}]{The unremitting trends of increasing population, urbanization, diminishing water supply, and continuing climate change have contributed to declining stocks of arable land per person.}
\lipsum[2]
\printbibliography
\end{document}
为了以防万一它有用，这里有一个\blokcquote-like 命令的定义，它不进行任何threshold测试并且始终默认为块引用样式。
\documentclass[11pt, twocolumn]{article}
\usepackage{csquotes}
\usepackage[natbib=true, style=authoryear-comp]{biblatex}
\usepackage{lipsum}
\makeatletter
\newrobustcmd*{\bblockquote}{%
\csq@getcargs{\bblockquote@i{}{}}}
\newrobustcmd*{\bblockcquote}{%
\csq@getccargs{\bblockquote@i{}{}}}
\def\bblockquote@i#1#2#3#4#5#6{%
\csq@getpunct{\csq@bquote@iii{#1}{#2}{#3}{#4}{#5}{#6}}}
\makeatother
\newenvironment{footnotesizequote}
{\quote\footnotesize}
{\endquote}
\SetBlockEnvironment{footnotesizequote}
\SetCiteCommand{\autocite}
\bibliography{biblatex-examples.bib}
\begin{document}
\lipsum[1]
\bblockcquote{sigfridsson}{As the world population continues to grow at a rapid rate, accompanied by a substantial
growth in food demand which is expected to transpire in the next 50 years, 80\% of the population will be living in urban areas}
\bblockquote[\citet{sigfridsson}]{It is predicted that the world population will reach 9 billion by 2050, of which 70\% will live in urban centres.}
\bblockcquote{sigfridsson}{The unremitting trends of increasing population, urbanization, diminishing water supply, and continuing climate change have contributed to declining stocks of arable land per person.}
\lipsum[2]
\printbibliography
\end{document}