There were good grounds for pessimism about future progress.
对将来的发展持悲观态度是有充分依据的。
词: pessimistic
词: pessimistically
，无兴趣，不关心;There were good grounds for pessimism about future progress.
对将来的发展持悲观态度是有充分依据的。
He displayed his usual pessimism.
出惯有的悲观。
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