They could hear the regular tick of the clock. 他們能聽見時鐘有規律的滴答聲。
As the tick,tick,tick of the biological clock sounded ever louder,aging baby boomers got down to the business of having a baby boomlet of their own. 隨著生物時鐘的滴答聲愈來愈響,年華日漸老去的嬰兒潮這一代,開始營造他們自己的生育小高峰。