尽管遇到挫折，他仍然是个乐观主义者。

Despite the setbacks, he remains an ___optimist.

她是个无可救药的乐观主义者，很有幽默感。

She is an incurable ___optimist with a great sense of humor.

真正的乐观主义者在每个困难中看到机会。

A true ___optimist sees opportunity in every difficulty.