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- An optimistic estimate suggests there would be 665 million billion addresses per square meter. 乐观的估计，每平方米上有66.;5亿亿个地址。
- My estimate of the situation is not so optimistic. 我对形势的估计不那么乐观。
- The most optimistic estimates will be infinitely surpassed once its revolutionary energy clears the way for it to the arena of action. 一旦它的革命力量为自己扫清道路而通向行动的舞台，最乐观的估计也将被远远地超越。
- I am optimistic about the outlook of our country. 我对我们国家的前景持乐观态度。
- I'm very optimistic about the company's future. 我对公司的未来非常乐观。
- The book ended on an optimistic note. 该书的结尾寓意乐观。
- He was very conservative in the estimate. 他的这一估计很保守。
- She is of an optimistic turn of mind. 她生性乐观。
- He was of an optimistic cast of mind. 他生性乐观。
- My optimistic predictions came true. 我的乐观的预言成了现实。
- My estimate of the length of the room was 10 feet. 我估计房间的长度为10 英尺。
- I need the actual figures, not an estimate. 我需要确实的数字，不要估计的。
- Nancy is not optimistic about her score of the test. 南希觉得她的考试成绩不容乐观。
- Mr. Sheraton estimate the cost at$50. 希尔顿先生估计费用要50美元。
- His estimate of the situation was sober. 他对形势的估计是审慎的。
- We are still optimistic, whatever the result (may be). 我们仍然乐观，不论结果如何。
- Yesterday in the evening the market once optimistically estimated that 7,000 hundred million US dollars will rescue the city plan to be allowed to pass finally. 昨日晚间市场一度乐观预计，7,000亿美元救市计划将最终获准通过。
- Gave a ballpark estimate of future unit sales. 对未来的单位销售法做出几近正确的估计
- An incurable optimist; an incurable smoker. 坚定不移的乐观主义者; 不可救药的烟民
- An inflated estimate; an inflated ego. 夸大的估计; 得意自满的自我
