一段的英文怎么说

一段的英文：
a length of
a span of
Length
passage

• Topical sentence
  阐述一段主题的句子
• For a long time; for ages;in ages
  一段很长的时间里
• Emend a passage in a book
  校正书中的一段.
• A lonesome hour at the Bar.
  酒吧里一段孤寂的时光
• A piece of impromptu spiced up the concert.
  一段即兴曲使音乐会更活跃了。
• excision of an obnoxious passage was required
  有一段引起反感的文字必须删掉。
• A passage from a literary work;an excerpt.
  摘录从文学作品中摘录下来的一段;摘录
• A bracket or block supporting a balcony or cornice.
  一段支撑阳台或飞檐的支架或木块.
• His room is approached by a flight of steps.
  有一段台阶通向他的房间。
• A flight of steps led up to the house.
  一段台阶向上通到了屋前。

• The length of the chain molecule is proportional to the kinetic chain length
  链分子的长度与动力学链长成正比。
• The length of that pen is only a finger.
  那支钢笔只有一指长。
• The standard length in France is the meter.
  法国的标准长度是米。

• They spanned windows with bricks.
  他们在窗子上用砖砌了拱顶。
• a memory [attention] span
  记忆 [注意力] 持续的期间[时间]
• span a river with a bridge
  在河上架桥

• The maritime passage was a good augury for the aerial passage.
  顺利的航海仿佛也是航空的好预兆。
• Excision of an obnoxious passage was required.
  有一段引起反感的文字必须删掉。
• The meaning of the passage is obscure.
  这段文字意义晦涩。