to start having doubts about a decision you have made
начать сомневаться в принятом решении (nachat' somnevatsya v prinjatom reshenii)
"I'm having second thoughts about buying such an expensive car."
"Я начал сомневаться в покупке такого дорогого автомобиля." (ya **nachal somnevatsya** v pokupke takogo dorogogo avtomobilya)
Something that shows potential but fails quickly
to fight very fiercely or with great determination
to be honest and reveal all the facts in a discussion
to criticize or treat someone harshly
to block an area by using a rope or barrier
something that will never happen
