to start having doubts about a decision you have made
下した決定について疑いを持ち始める (kudashita kettei ni tsuite utagai wo mochi hajimeru)
"I'm having second thoughts about buying such an expensive car."
"そんな高い車を買うことにセカンド・ソーツを感じています。" (sonna takai kuruma wo kau koto ni **second thoughts** wo kanjiteimasu)
a sudden clever idea or solution
to watch or monitor something or someone carefully
to say something without deep thinking or preparation
a strict mother who pushes her children to achieve high stan...
a person who is considered a disgrace to a group or family
something new and refreshing