名词

• Perfect competition is defined by the economist as a technical term .
  经济学者把完全竞争当作一个专用的名词。
• A number of terms are used in various classifications of transplants .
  移植物的各种分类中应用了一系列的名词。
• We have refrained from using the term income in our dynamic theory .
  在我们的动态理论中我们不用收入这一名词。
• Fish as a countable noun has two plural forms : fish and fishes .
  Fish作可数名词时有两个复数形式fish和fishes。
• " travel " is an uncountable noun indicating the action of travelling
  “旅游”是一个不可数名词，指行走这一动作。
• "visible injury" is a term used to indicate necrosis on the leaf surface .
  “可见危害”这个名词常常指叶面的坏死。
• When texts are available the term protohistory is often used .
  在可以得到文献的情况下往往就使用有史考古学这个名词。
• English people use the singular form of the noun in expressions of that sort .
  英国人在这类词组中，常用名词的单数。
• Alternatively , the sentence can be rephrased , using a plural noun .
  变通一下说法，可以改变句子的措辞，使用复数名词。
• Job , task are countable nouns indicating a piece of work that a person does .
  “Job，task”均为可数名词，指人做的工作。