一个疯狂的科学家，从琥珀中弄出来一个酵母细胞，这完全是个随机事件。

It's such a random thing. A yeast cell, captured in amber, found by a mad scientist.

youdao

十多年以来，科学家已经了解到，低卡路里的饮食能够延长很多生物的寿命，包括酵母菌、果蝇、猴子，可能还包括人类。

For more than a decade, scientists have known that a low-calorie diet lengthens the lives of many organisms, including yeast, fruit flies, monkeys, and perhaps humans.

youdao

同时，其他科学家已经在一组神经元中识别出了一个受体，这个受体能使果蝇闻到二氧化碳，二氧化碳是一顿美味的活酵母呈现的标志。

In the meantime, other scientists had identified a receptor in a group of neurons that enable fruit flies to smell carbon dioxide, which signals the presence of a good meal of tasty yeast.

youdao