反式脂肪是液态油经过所谓氢化的化学处理后变为固态，且保质期延长。
Trans fats are liquid oils that are put through a chemical process called hydrogenation to make them more solid and extend shelf life.
食用经过辐射杀菌处理、延长了保质期的食品是安全的。
It's safe to eat foods that have been irradiated to prolong their shelf life.
食用经过辐射杀菌处理、延长了保质期的食品是安全的。
It's safe to eat foods that have been irradiated to prolong their shelf life.
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