Also, research conducted over a 15-year period at the University of Hawaii confirmed that dolphins have high-level language recognition abilities, and may have a grammar structure including nouns, verbs, adjectives, and direct and indirect objects.
美國夏威夷大學赫門研究室在從事了十五年的研究後，肯定了海豚具有語言結構的高層認知能力，可能有主詞、動詞、形容詞、副詞、受詞等文法結構呢。