持续时间用英语怎么说？

持续时间

例句

• The pupil's attention span was short. 这个小学生的注意力持续时间很短。
• Young children have a limited attention span and can't concentrate on one activity for very long. 小孩子的注意力持续时间十分有限，不能长时间地专注于一个活动。
• His ability to absorb information was astonishing, but his concentration span was short... 他吸收信息的能力令人吃惊，但是他的注意力持续时间很短。
• In the teeth of the longest recession since the 1930s, the company continues to perform well. 尽管面对 20 世纪 30 年代以来持续时间最长的经济衰退，这家公司却一直经营良好。
• The main characteristic of the strike has been its longevity. 这次罢工的主要特点是持续时间长。