Many argue that it is a flawed concept.
许多人认为这是一个有缺陷的概念。
2017英语一
The concept of sustainable development has been defined as profitable.
可持续发展的概念被定义为有利可图。
2016英语一
The concept of man versus machine is at least as old as the industrial revolution.
人与机器的概念至少和工业革命一样古老。
2014英语二