英语语法分析

There was a net outflow of about $650m.

净外流量大约是6亿5千万美元。

《柯林斯英汉双解大词典》

There was a capital outflow of $22 billion in 1998.

1998年的资本外流量为220亿元。

《牛津词典》

Outflow channels are probably relics of catastrophic flooding on Mars long ago.

流出通道可能是很久以前火星上发过洪水的遗迹。