Translation of "costly" into Afrikaans

To delay needlessly could prove costly either to ourselves or to others.

As ons dit onnodig uitstel, kan dit ons of ander duur te staan kom.

Some of the most costly inclusions are those known among amber lovers as the three treasures—scorpions, lizards, and frogs.

Sommige van die waardevolste insluitsels is dié wat amberentoesiaste die drie skatte noem—skerpioene, akkedisse en paddas.