Agricultural engineering and biosystems engineering apply engineering science to agricultural purposes to improve the efficiency and yield of farms growing food.

农业工程与生工程将工程科学应用于农业领域，旨在提高种植粮食的农场的效率和产量。

She said the system started full operations in June, and it is the first independently built biosystem for a favela in Brazil.

她说，该于今年6月开始全面运行，这是巴西第一个为贫民窟独立建造的生。

(Applause) A pensioner living in a 5.5-degree Fahrenheit -- as opposed Celsius -- 5.5-degree Fahrenheit world with degraded biosystems and rampant inequality will not enjoy the fruits of their retirement.

（掌声）一个生活在气温升高5.5华氏度——而不是摄氏度——的世里的退休老人，面对退化的生和普遍的不平等，将无法享受他们的退休生活。