It is estimated that the gross annual value of industrial and agricultural output will be quadrupled.

工农业总产值预计翻两番。

《新英汉大辞典》

It is estimated that 60,000 businesses are exploiting a loophole in the law to avoid prosecution.

据估计6万家公司在钻法律的空子来逃避起诉。

《柯林斯英汉双解大词典》

It is estimated (that) the project will last four years.

据估计，这项工程将持续四年。

《牛津词典》

It estimated that about 65% of the proposed spending would be injected into the economy over 19 months.

VOA: special.2009.01.31

"We are active now in one hundred ninety countries and it's estimated that one billion people participate in Earth Day events around the globe now."

VOA: special.2010.04.21

It is estimated that less than two thousand of the animals live in the wild.

VOA: special.2010.01.19

It estimated the bills could run into billions of dollars.

BBC: Alaska village faces eroded future

Mercer, the agency contends, made multiple errors as the state's actuarial consultant when it estimated the amounts that two of the state's retirement plans needed to set aside for health care and pension benefits.

FORBES: Financial Watchdog

For example, in its fourth amended registration statement, filed with the SEC in October of 2011, Zynga noted that during the first half of last year it estimated the blended average paying player life for a game as 15 months, down from 19 months a year earlier.

FORBES: How Zynga, Facebook and Groupon's Go-To Auditor Rewrites Accounting Rules