Optimism refers to a positive mental attitude characterized by hope and confidence about the future or the success of a particular endeavor. Optimistic people tend to believe that good things will happen and that challenges can be overcome. They often see setbacks as temporary and as opportunities for growth rather than insurmountable problems.

“Optimistic” 的意思是乐观的，指一种积极向上的心态。乐观的人通常相信未来会有好的事情发生，并且对成功充满信心。面对困难时，他们更倾向于认为这是暂时的挑战，而不是无法克服的问题。乐观的人在生活中往往会看到机会和希望，而不是专注于消极的一面。