Although he is one of China’s most famous scientists, Yuan Longping considers himself a farmer, for he works the land to do his research. Indeed, his sunburnt face and arms and his slim, strong body are just like those of millions of Chinese farmers, for whom he has struggled for the past five decades.
whom:
You use whom at the beginning of a relative clause when specifying the person or group of people you are talking about or when giving more information about them.
One writer in whom I had taken an interest was Immanuel Velikovsky…
我感兴趣的其中一位作家是伊曼纽尔·韦利科夫斯基。
The Homewood residents whom I knew had little money and little free time.
我所认识的霍姆伍德的居民没多少钱也没多少闲暇时间。
//…generations of women for whom work provided an escape from family life.
通过工作来逃离家庭生活的一代又一代的女性for these women work provided an escape from family life