英语听力精选进阶版 14257（在线收听） |
World's first lab-grown burger Vocabulary livestock farming the farming of animals such as cows, chickens and sheep to satisfy to meet a need demand the amount of a product or service that people want the real thing the original, not a copy a work in progress something that is happening or being done stem cells cells, usually from a human or animal, that can develop into any other kind of cell technologists people who work with a certain type of technology (in this report, food) development process the steps in creating a new product or method |
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