例句:At the outset of his career he was full of optimism but not now.
他事業(yè)伊始十分樂觀,但現(xiàn)在已今非昔比了。
pessimism n. 悲觀,悲觀主義
例句:Nicholas never gave himself up to pessimism in spite of difficulties.
盡管遇到困難,但是尼古拉斯從沒有消極悲觀過。
pessimistic adj. 悲觀的,厭世的
例句:She tried to shut all pessimistic thoughts out of his mind.
他努力從頭腦中排除一切悲觀的想法。
optimistic adj. 樂觀的
例句:He was always optimistic, even when things were at their worst.
他即使在最糟糕的時候也總是非常樂觀。
optimum n. 最適宜 adj. 最適宜的
例句:The market offer optimum condition for sale.
市場為銷售提供了最佳條件。