估计: estimate; evaluate; take stock of; size up; calculate; appraise; reckon; estimation; forecast 短语和例子大致估计 rude estimates; 非常乐观的估计 a very optimistic estimate; 照我的估计 by my reckoning; 据保守的估计 on
阶段: stage; phase; period; gradation; bench 短语和例子分阶段 by stages; in stages; 分阶段撤军 phased troop withdrawal; 过渡阶段 transitional stage; 历史阶段 historical period; 初 [中; 高]级阶段 the junior [middle; senior