大约

• Only about 2% of the deposits are chemical grade .
  蕴藏中只有大约2%是“化学级”的。
• There are about 1. 5 million islets is the pancreas .
  胰腺里大约有一百五十万个胰岛。
• Pisa is believed to be about three thousand years old .
  据称比萨大约有三千年的历史。
• He earns something like 35000 .
  他收入了大约35000。
• The lunar gravity is about one-sixth that on earth .
  月亮的引力大约为地球的六分之一。
• He was a pert little blonde of about six years .
  他是个唐突而漂亮的小孩，大约六岁左右。
• They produced leaflets, around a hundred in all .
  他们搞了一些活页材料，总共大约100页。
• There were about a dozen of them .
  大约有十二人。
• I have known you now for something like fourteen years .
  到现在我认识你大约有十四年了。
• It covers about an octave .
  它大约占一个倍频程。