Those bacteria live in inconvenient locations, such as the underbrush of a distant jungle or the gut of a termite, and they turn out to be harder to domesticate than yeast was.

• 这类细菌往往藏身在很难取得的地方，例如偏远地区丛林的灌木丛中，或是白蚁的消化道中，比酵母菌还难以控制。