大约

• Walter got away with about twenty pages .
  沃尔特偷去了大约有二十页。
• Millikan used a value about 1% too low .
  密立根所用的值大约偏低1。
• The targets are irradiated for about one year .
  靶核大约要辐照一年。
• Nuclei are about as large as a "barn" .
  原子核大约是一个“靶”那么大。
• Some twenty students have been sent down .
  大约二十名学生退学。
• Some twenty students have been sent down .
  大约二十名学生停学。
• The earthquake continued for about two minutes .
  地震持续了大约两分钟。
• About two o'clock, the mist cleared away .
  大约两点时云雾消散了。
• She was about thirty and quite pretty .
  她大约有三十岁光景，生得很漂亮。
• I should imagine it would take about three hours .
  我想得花大约三个钟头。