optimistic

adj. /ˌɑːp.təˈmɪs.tɪk/ B2

乐观的；自信的

Hoping or believing that good things will happen.

仙境例句

The Dodo was optimistic: “The shore must be near, for I can smell the grass!”

渡渡鸟很乐观：“岸一定不远了，我都闻到青草味了！”