Mechanism 用法：①In a machine or piece of equipment， a mechanism is a part， often consisting of a set of smaller parts， which performs a particular function. ② A mechanism is a special way of getting something done within a par
Justify 用法：① To justify a decision， action， or idea means to show or prove that it is reasonable or necessary. 例句： While it is pleasant to imagine a woodworker， for example， carefully matching lumber， joining a chest
Issue 用法：① An issue is an important subject that people are arguing about or discussing. 例句： This is a complex issue about which not a great deal is known， but the lack of evidence of mineral deficiencies in our population s
Insufficient 用法：Something that is insufficient is not large enough in amount or degree for a particular purpose. （FORMAL） 例句： Until the turn of the century， most were the production of an individual editor， who might beg
