diff --git a/bin/install_CN.sh b/bin/install_CN.sh
index fe9630f..49a677e 100644
--- a/bin/install_CN.sh
+++ b/bin/install_CN.sh
@@ -32,7 +32,8 @@ INK_SCREEN_CLOCK_REPO_URL="https://gitee.com/xingguangk/2.13-Ink-screen-clock.gi
 PIPY_MIRROR="https://mirrors.tuna.tsinghua.edu.cn/pypi/web/simple"
 
 # Debian 11 (Bullseye) 相关命令
-UPDATE_SOURCES_LIST_BULLSEYE="sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak && sudo cat <<'EOF' > /etc/apt/sources.list
+UPDATE_SOURCES_LIST_BULLSEYE="
+sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak && sudo cat <<'EOF' > /etc/apt/sources.list
 deb $DEBIAN_MIRROR bullseye main contrib non-free
 # deb-src $DEBIAN_MIRROR bullseye main contrib non-free
 
@@ -44,14 +45,16 @@ deb $DEBIAN_MIRROR bullseye-backports main contrib non-free
 
 deb $DEBIAN_SECURITY_MIRROR bullseye-security main contrib non-free
 # deb-src $DEBIAN_SECURITY_MIRROR bullseye-security main contrib non-free
-EOF"
+EOF
+"
 INSTALL_PACKAGES_BULLSEYE="sudo apt-get update && sudo apt-get install -y git pigpio raspi-config netcat gawk python3-dev python3-pip python3-pil python3-numpy python3-gpiozero python3-pigpio build-essential"
 INSTALL_PIP_PACKAGES_BULLSEYE="sudo pip3 install -i $PIPY_MIRROR spidev borax pillow requests --break-system-packages"
 DOWNLOAD_AND_EXECUTE_BULLSEYE="wget $PI_SUGAR_POWER_MANAGER_URL && bash pisugar-power-manager.sh -c release"
 CLONE_AND_EXECUTE_BULLSEYE="cd ~ && git clone $INK_SCREEN_CLOCK_REPO_URL && cd ~/2.13-Ink-screen-clock/bin/ && sudo chmod +x start.sh && sudo ./start.sh"
 
 # Debian 12 (Bookworm) 相关命令
-UPDATE_SOURCES_LIST_BOOKWORM="sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak && sudo cat <<'EOF' > /etc/apt/sources.list
+UPDATE_SOURCES_LIST_BOOKWORM="
+sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak && sudo cat <<'EOF' > /etc/apt/sources.list
 deb $DEBIAN_MIRROR bookworm main contrib non-free non-free-firmware
 # deb-src $DEBIAN_MIRROR bookworm main contrib non-free non-free-firmware
 
@@ -63,7 +66,8 @@ deb $DEBIAN_MIRROR bookworm-backports main contrib non-free non-free-firmware
 
 deb $DEBIAN_SECURITY_MIRROR bookworm-security main contrib non-free non-free-firmware
 # deb-src $DEBIAN_SECURITY_MIRROR bookworm-security main contrib non-free non-free-firmware
-EOF"
+EOF
+"
 INSTALL_PACKAGES_BOOKWORM="sudo apt-get update && sudo apt-get install -y git pigpio raspi-config netcat gawk python3-dev python3-pip python3-pil python3-numpy python3-gpiozero python3-pigpio build-essential"
 INSTALL_PIP_PACKAGES_BOOKWORM="sudo pip3 install -i $PIPY_MIRROR spidev borax pillow requests --break-system-packages"
 DOWNLOAD_AND_EXECUTE_BOOKWORM="wget $PI_SUGAR_POWER_MANAGER_URL && bash pisugar-power-manager.sh -c release"