润色：Duty days counting of Dary Lu in March

Duty Days Count for Dary Lu in March

Dary Lu worked for a total of 23 days in the month of March. Out of these 23 days, he had 2 days off, which means he was on duty for 21 days.

In addition to these 21 days, Dary Lu also worked 2 half-days, which means he worked for a total of 22 days and a half.

To summarize, Dary Lu had:

• 21 full duty days
• 2 half-duty days

Therefore, his total duty days count for March was 21.5 days.