We may now look forward with optimism.
我们现在可以乐观地展望未来。
The government has small cause for optimism.
几乎没有什么可以使政府感到乐观的。
They expressed cautious optimism about a solution to the crisis.
他们对解决危机持谨慎的乐观态度。
The music of the time mirrored the feeling of optimism in the country.
这个时期的音乐反映出这个国家的乐观精神。
There are very real grounds for optimism.
的确有理由可以乐观。