Add spaces: Theholidaydurationis22workingdays.Iftheholidayistakeninwintertheworkergets2extradays.

Answer: The holiday duration is 22 working days. If the holiday is taken in winter the worker gets 2 extra days.

Add spaces: Russiantwists.(ビデオ,butyoudon’tneedtousethemedicineballasshown.)

Answer: Russian twists. ( ビデオ , but you don’t need to use the medicine ball as shown.)

Add spaces: Nowthewholeproductionisvinifiedatthedomainbut1/3isstillsoldinbulk.

Answer:
Now the whole production is vinified at the domain but 1/3 is still sold in bulk.