Only those who take leisurely what the people of the world are busy about 【主语】can be【谓语动词】 //busy about what the people of the world take leisurely.【表语】

参考译文(1): 能闲世人之所忙者，方能忙世人之所闲。【简洁意译】

参考译文(2):只有那些能够悠闲对待世人都很忙碌的事情的人才会忙于世人悠闲对待的事情。【直接翻译】

【句子主干结构：only those who 定语从句+can be busy about what 宾语从句】

备注(1):only those 作主句主语

备注(2) :who take leisurely what the people of the world are busy about为关系代词引导定语从句修饰“those”关系代词“who”指代“those”并在定语从句作主语。

备注(3):only those 作主句主语

备注(4): what the people of the world are busy about 作定语从句中的谓语动词take的宾语从句。(备注:What=the things that)

备注(5):can be为主句谓语动词

备注(6):busy about what the people of the world take leisurely.为主句表语

备注(7):what the people of the world take leisurely作介词about 的宾语从句 (备注:What=the things that)

继续跟踪解答如下

【1】Only those who take leisurely what the people of the world are busy about

 =【2】Only those who take leisurely the things that the people of the world are busy about

【1】Only those who take leisurely what the people of the world are busy about

主句：only those who take leisurely

(宾语)从句：what the people of the world are busy about

备注(1)：what为融合型连接代词，引导宾语从句，同时在宾语从句作介词about“宾语”结构为：be busy about sth 忙于某事

备注(2)：the people of the world为宾语从句主语

备注(3)：are为宾语从句系动词

备注(4)：busy 为形容词作表语

备注(5)：about what 为介词短语作方面状语

【2】Only those who take leisurely the things that the people of the world are busy about

主句：Only those who take leisurely the things

定语从句：that the people of the world are busy about

备注(1):that the people of the world are busy about为关系代词that引导定语从句修饰名词things,并在定语从句作介词about的宾语

备注(2)：the people of the world为宾语从句主语

备注(3)：are为宾语从句系动词

备注(4)：busy 为形容词作表语

备注(5)：about what 为介词短语作方面状语