【正确答案】：
IT SHOULD BE POINTED OUT THAT THE IDIOMATICITY OF IDIOMS IS GRADABLE AND MAY BEST BE THOUGHT IN TERMS OF A SCALE, WITH THE “TRUE“ IDIOMS ESTABLISHED AT THE UPPER END AND REGULAR COMBINATIONS AT THE BOTTOM.
【题目解析】：It should be pointed out that the idiomaticity of idioms is gradable and may best be thought in terms of a scale, with the “true“ idioms established at the upper end and regular combinations at the bottom. 应该指出的是，习语的习语性是可分级的，最好从规模上考虑，真正的习语建立于顶端，而常规用语在底端。