单词 | oily fish |
释义 | Word Frequency oily fish(ˈɔɪlɪ fɪʃ) noun any variety of fish, such as the sardine, mackerel, salmon or trout; that has oils throughout its body rather than stored solely in the liver an oily fish Oily fish contain omega-3 fatty acids, which are believed to improve concentrationand speed of learning. |
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