终端命令mdict --title title.html --description description.html -a mdd_dir dict.mdd是这样，我不知道怎么修改？
usage: mdict [-h] [--version] [-k] [-m] [-q <key>] [--txt-db] [--db-txt] [-x]
[-d <exdir>] [--exdb] [--exdb-zip] [--split-n <number>]
[--split-az] [-a <resource>] [--title <title>]
[--description <description>] [--encoding <encoding>]
[--key-size <size>] [--record-size <size>]
[--key-file <key file>] [--convert-chtml]
<mdx/mdd>