Add spaces: Today,theEuropeanCommissionwillstepupitscontributionwith€70milliontoensurethecompletereturntoasafeenvironmentattheChernobylsite(Ukraine).

Answer: Today, the European Commission will step up its contribution with €70 million to ensure the complete return to a safe environment at the Chernobyl site (Ukraine).

Add spaces: Workedintheroundfrommidback.

Answer: Worked in the round from mid back.

Add spaces: translator-English-Russian

Answer:
translator - English - Russian