重要

span

/spæn/📚 6472 86 2四级六级考研托福雅思
A span is the period of time between two dates or events during which something exists, functions, or happens. (两时间点之间的) 时间段

noun [抽象名词]时间跨度,一段时间;(桥或拱的)墩距,跨距;宽度,翼展;范围,包括的种类;(航海)跨绳;一队人(或动物);数值范围;一掌的长度

Your concentration span or your attention span is the length of time you are able to concentrate on something or be interested in it. (
注意力的) 持续时间

verb [vt. 及物动词]持续,贯穿;包括(广大地区),涵盖(多项内容);横跨,跨越;张开手覆盖(或环绕);<南非>给(动物)套上轭

If something spans a long period of time, it lasts throughout that period of time or relates to that whole period of time.
持续

span 出现在下面的课文中
Lesson 17 The longest suspension bridge in the world span 名词: 跨度
Lesson 29 The hovercraft
单词造句:

n. 跨度,跨距;范围

  • The arch has a span of 60 meters. (物理的)跨度
  • I worked with him over a span of six years. (时间的)跨度
  • The project must be completed within a specific time span. 时间跨度