The reservoir has in storage about 30 million cubic metres.

这座水库贮水约3000万立方米。

《新英汉大辞典》

So we are seeing a big difference of essentially about 30 million poor, "says Gill."

一降一增，这其中的差异实际上就是3000万左右。

youdao

About 30 million people visit Britain each year, spending about 16.6 billion pounds ($26 billion).

目前英国每年共接待3000万游客，共拉动消费166亿英镑（260亿美元）。

youdao

Both bills seek to make health-insurance coverage accessible to between compared to the current 83 percent adding about 30 million people.

VOA: standard.2009.12.25

About 30 million hectares of soybeans are harvested each year.

VOA: standard.2010.02.01

President Obama's current proposal calls for insuring 30 million more Americans at a cost of about $1 trillion over ten years.

VOA: standard.2010.02.25

Dell sells about 30 million devices a year, which makes it big in computers.

FORBES: The Skype Microsoft Deal, Facebook, and the Business of Super-Large Numbers

Based on these numbers, the real tally of the jobless is probably about 30 million, or a real jobless rate of 18.7%.

FORBES: Real Jobless Rate Double Official Government Rate

"There are about 30 million flexible e-ink displays in the field today - the oldest working ones are from 2006, " says Sri Peruvemba of E-Ink.

BBC: Bend me, shape me: Flexible phones 'out by 2013'