1·I would put her age at about 50 or so.
我估计她的年纪大约是五十岁左右。
—— 《柯林斯英汉双解大词典》
2·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》
3·The "Black" group, on the other hand, put his salary at about $29,000, and guessed that he had only "some" college experience.
另一方面，“黑人”群体认为他的薪水大约是29000美元，并且猜测他只有“少许”大学经历。
4·The densities of the terrestrial planets average about 5 times the density of water, whereas the Jovian planets have densities that average only 1.5 times the density of water.
类地行星的密度的平均值大约是水的密度的五倍，而类木行星的密度平均值只有水的密度的1.5倍。
5·So this week you should measure about 21 centimeters.
所以到这一周，你的宫高大约是21厘米。