an oil obtained from tuna
The work makes clearer who does and does not benefit from taking supplements of omega-3 fatty acids, the good oils found in fish such as salmon, tuna and sardines.
NPR: Study: Fish Oil Doesn't Help Prevent Heart Attacks
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。