to feel sad or depressed
感到悲伤或沮丧 (gandao beishang huo jushang)
"She’s been feeling blue all day."
"她整天都很伤心。" (ta zhengtian dou hen shangxin)
to suddenly realize the solution to a problem
I believe that; expressing a firm opinion
to focus closely on something
to be someone who keeps their promises
If you are determined, you can find a way to achieve your go...
to deal with a problem when it arises, rather than worrying...