There were good grounds for pessimism about future progress.
对将来的发展持悲观态度是有
据的。
词
词;
，无兴趣，不关心;的;There were good grounds for pessimism about future progress.
对将来的发展持悲观态度是有据的。
He displayed his usual pessimism.
他流露出惯有的悲观。
声明：以上例句、词性
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