question about size database log

SHARD LOG size of this is 34 GB
I clean logs and nothing happens to the volume
database v188 clean doesn't have all this volume

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Try to backup again and size will be normal again

How to Reduce/Shrink the SQL Server Database Size?
Step 1: Right-click on the database name >> Tasks >> Shrink >> Database.
Step 2: Then Click OK.
Step 1: Open SQL Server Management Studio.
Step 2: Connect to the Database Engine.
Step 3: From the Standard bar, click New Query.
Step 4: Type the following SQL command into the query window and click Execute