主要的义务规则是那些要求或禁止某些行为的规则。
数学语言是通用的,超越了文化和语言的障碍。
In the fruit industry, quality starts long before the harvest—it begins with the soil and the care we put into every step.
"I am not interested in the individual fate of the characters, but in the social conditions that produce such fates."