Hello Jinsong.
In the Notation Reference manual (NR). It's complete. But its not a
ordered alphabetical list of commands. It's arranged by topic, with
extensive explanatory material. There is also an alphabetical index.
http://lilypond.org/doc/v2.18/Documentation/notation/index.html
You can find the same for 2.91.83 if you download the documentation for
that.
Translations to many languages are available.
On 30/11/19 12:16 pm, Jinsong Zhao wrote:
BTW, where can I find the reference for every command used in Lilypond?