彼女、機構の仕組みを理解する必要がある

N5 彼女 kanojo she N3 機構 kikou mechanism, organization, structure N1 仕組 shikumi structure, mechanism N3 理解 rikai understanding, comprehension N5 する suru do, perform, try N4 必要 hitsuyou necessary, need

N3 要 you / i.ru, kaname need, main point, essence

N5 〜が ga Marks the grammatical subject, highlights new information, can also show slight contrast in some sentences N5 〜を o Marks the direct object of an action, appears before the verb, shows what receives the action N5 〜の no Indicates possession, relation between nouns, nominal explanation, or turns a verb into a noun phrase