(1)install win10+ubuntu18.04:
reference:超详细!Win10(UEFI启动)安装Ubuntu18.04双系统
another reference:win10安装ubuntu18.04 LTS双系统
lenoovo K4-IML enter BIOS: (Ctrl+Fn+F12)/(Fn+F2/F1)
(2)ubuntu18.04 install ROS-melodic
official website:Ubuntu install of ROS Melodic
(3) install goole pinying in Ubuntu18.04
reference website: