About 20 dark complected men standing with their backs towards us raising both hands in the air.
Ongeveer 20 donkere mannen staan met hun rug naar ons toe... beide handen omhoog in de lucht.
20 men are raising their hands.
20 mannen steken hun handen op.
Both hands implies they raised both hands.
Beide handen betekenen dat ze beide handen ophieven.