ＲｕｄｉｍｅｔａｒｙとＥｌｅｍｅｎｔａｒｙの違い

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その中で気になった単語を掘り下げて研究してもらっている

今回はＲｕｄｉｍｅｔａｒｙとＥｌｅｍｅｎｔａｒｙの違いだ

Rudimentary: 1. (of facts, knowledge, etc.) at the simplest level; coming or learnt first.

              I have only a rudimentary knowledge of chemistry.

              2. simple and incomplete; PRIMITIVE:

              Their road-building equipment is fairly rudimentary.

              3. esp.tech small and not fully usable, either because not yet developed or

                because of gradual disappearance:

               Ostriches ( ダチョウ ) have rudimentary wings.  　　　　

Elementary:   1. Simple and easy:

                The question/answer is elementary.

               2. concerning or introducing the first and most simple part of something, esp.

                 education or an area of study:

                 Some elementary English exercise for the learner.