/ˌəʊvərˈestɪmeɪt; NAmEˌoʊ-/ [] to think or guess that the amount, cost or size of sth is larger than it really is估计过高；高估◆The firm failed because it overestimated sales and underestimated costs.这家企业破产的原因是高估了销售额而低估了成本。to think that sb is better, stronger, etc. than they really are评价过高◆Have we overestimated the competition?我们对这一竞争是不是评价过高了？◆They overestimated his ability when they promoted him.在提拔他时，他们过高估计了他的能力。OPPunderestimate