# Changing linespacing in Chinese

I am going to write a document containing Chinese and English words. However, the linespaces for the two different language are not the same. Now, I take "Temporarily increase line spacing" as the reference to change the linespace for the lines with Chinese characters. Here is my code (Note that I typeset the document with XeLaTeX):

\documentclass[12pt,a4paper]{article}

% Setting the Chinese fonts.
\usepackage{xeCJK}
\setCJKmainfont{BiauKai}
\newCJKfontfamily\bfKai{楷體-繁 粗體}

\usepackage{times}

% Setting the linebreak for Chinese font.
\XeTeXlinebreaklocale "zh"
\XeTeXlinebreakskip = 0pt plus 1pt

\renewcommand{\abstractname}{\bfKai{摘要} (Abstract)}

\setlength{\baselineskip}{20pt}

\begin{document}
\begin{abstract}

But the command \linespread{1.2} before the Chinese sentences is not working at all. How to fix the problem?
• \linespread{1.2}\selectfont – egreg Feb 29 '16 at 9:31