на общественных началах(преимущ. о юридической помощи: Abdulai is among a bipartisan group of 32 lawyers who, as their own form of protest, have agreed to represent Mbomaya pro bono.Lavrov)
соответствующее уменьшение(Where a student is studying full time and they receive credits for one or more modules then they will receive a pro-rata reduction in their tuition ... – АД)
пропорциональное представительство(напр.: пропорциональное представительство компании в наблюдательных советах и комиссиях – pro-rata representation of the company on all supervisory boards and committees Leonid Dzhepko)
