What are the four-character idioms in the calendar?

What are the four-character idioms in the calendar?

In my opinion,

Calendar,

After many vicissitudes,

Unknown origin,

In my opinion,

Cross-arm calendar means,

Lasting,

Through the calendar block of the capital,

Pengtou calendar teeth,

Step by step,

Through the oil well,

As vivid as a painting,

Experience and age,

You Li Xianyang,

Dull through the ages,

The calendar is very long,

Resume,

For many years,

Over the years,

Fall vividly,

Age and experience,

Every other year in the imperial calendar,

Persistent dust,

Mountain, mountain, feeling, touch parameters and Jing.