half the timehɑ:fðətaim短语¹²⁴⁹⁰ 基本例句 n.一半时间长时间地 According to the American Urological Association, nearly one in six couples in the US have trouble conceiving a baby, and about half the time the man is at the root of the problem. 美国泌尿协会统计的数字显示，有近1/6的美国夫妇不孕不育，其中一半的原因在男方。 www.chinadaily.com.cn