optimistic

/ˌɑptɪˈmɪstɪk/

expecting the best in this best of all possible worlds

Chinese meaning: 乐观的；积极的

Despite the challenges, she remains optimistic about the future of renewable energy.

尽管面临挑战，她仍然对可再生能源的未来持乐观态度。

An optimistic attitude can help people overcome difficulties more easily.

乐观的态度可以帮助人们更容易地克服困难。