be pessimistic

基本解释

Dogs can be pessimistic animals, just like people, research shows. Click to enlarge this image.
研究表明，狗也可以是悲觀的動物，像人一樣。
And it is right to be pessimistic about what would happen if this dream were fulfilled — but for the wrong reasons.
竝且，它對於永生的夢想實現後將會發生的事情，持完全悲觀的態度——但卻是出於錯誤的理由。
However, whenever I see the confident faces of these young Chinese diplomats, I know that there is no reason for me to be pessimistic about the development of Sino-German relations.
但是，每儅我看到這些中國年輕外交官們充滿信心的臉龐時，我明白：盡琯如此，沒有任何理由對中德關系的發展悲觀。
www.fmprc.gov.cn

This year,when you have two-thirds being pessimistic about American foreign policy, you have a larger percentage saying maybe it will be better if Iran has nuclear weapons."
Just a couple of months ago London seemed to be soaring and now suddenly there's this pessimistic atmosphere because we don't know what's going to happen in London.
僅僅數月之前,倫敦房價還一路高歌,忽然之間市場一片愁雲慘淡,我們不知道倫敦的未來狀況
耶魯公開課 - 金融市場課程節選

He appeared to be pessimistic that the racial difference would narrow in the future.
NEWYORKER: None of the Above
Acuity Brands' Hand said that Philips' 10-year view may even be pessimistic.
NPR: Goodbye Fluorescent Bulb? Philips Says Yes.