1. You need to install the dependency package Gstreamer0.10-plugins-ugly_0.10.19-2.1_amd64.deb first, but the dependency package
There are still two dependent packages that need to be installed in advance, and these three dependencies can be downloaded from here
After downloading, open the terminal, go to the download directory, and then execute
sudo dpkg-i libsidplay1_1.36.59-6_amd64.deb
sudo dpkg-i libx264-142_0.142.2431+gita5831aa-1+b2_amd64.deb
sudo dpkg-i gstreamer0.10-plugins-ugly_0.10.19-2.1_amd64.deb
2. Installation Youdao
Download the installation package Youdao-dict_1.1.0-0-ubuntu_amd64.deb from the official website and go to the download directory
Execute sudo dpkg-i youdao-dict_1.1.0-0-ubuntu_amd64.deb
During the installation, a dependent package is not installed and the execution
sudo apt-get-f Install
Then again sudo dpkg-i youdao-dict_1.1.0-0-ubuntu_amd64.deb can be
Ubuntu16.04 Installed Youdao Dictionary