为什么小型大写字母的跟踪有所不同\makebox，我怎样才能获得相同的结果？
% !TeX TS-program = lualatex
\documentclass{book}
\usepackage{fontspec}
\usepackage[%
tracking=smallcaps,%
]{microtype}%
\SetTracking{encoding=*,shape=sc}{150}%for demonstration purposes
\begin{document}
\textsc{ABCDE}
\makebox[25mm][l]{\textsc{ABCDE}}
\end{document}
输出\listfiles：
*File List*
book.cls 2020/04/10 v1.4m Standard LaTeX document class
bk10.clo 2020/04/10 v1.4m Standard LaTeX file (size option)
fontspec.sty 2020/02/21 v2.7i Font selection for XeLaTeX and LuaLaTeX
xparse.sty 2021-01-09 L3 Experimental document command parser
expl3.sty 2021-02-06 L3 programming layer (loader)
l3backend-luatex.def 2021-02-06 L3 backend support: PDF output (LuaTeX)
xparse-2020-10-01.sty
fontspec-luatex.sty 2020/02/21 v2.7i Font selection for XeLaTeX and LuaLaTeX
fontenc.sty
fontspec.cfg
microtype.sty 2020/12/07 v2.8 Micro-typographical refinements (RS)
keyval.sty 2014/10/28 v1.15 key=value parser (DPC)
microtype-luatex.def 2020/12/07 v2.8 Definitions specific to luatex (RS)
microtype.cfg 2020/12/07 v2.8 microtype main configuration file (RS)
ts1cmr.fd 2019/12/16 v2.5j Standard LaTeX font definitions
mt-LatinModernRoman.cfg 2013/03/13 v1.0 microtype config. file: Latin Modern
Roman (RS)
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