Translation of "twice" into Estonian

I traveled abroad twice in my youth.

Noorena reisisin välismaale kahel korral.

The plastic bag is sealed twice and placed between the inner and outer bags in the Stomacher.

Plastkott suletakse kahekordselt ning asetatakse Stomacheri aparaati sisemise ja välimise koti vahele.

I insured it for twice what it was worth.

Ma kindlustasin selle topelt summale, mis ta väärt oli.