her spare time she has is spent staying in the library.请分析一下这个句子 she has is spent 是怎么用的

her spare time 是该句的主语she has 为定语从句，因做has的宾语，省略了关系代词that或which；spend ...doing为固定搭配.

her spare time she has / is spent staying in the library.
请注意，she has是用来修饰her spare time的，这个句子可以缩略成her spare time is spent staying in the library.

she has是用来修饰前面的spare time的，意思是她拥有的空余时间，补充完整了是that/which she spent，是个定语从句。
后面的is spent的主语是her spare time，整个句子的意思是她所拥有的空余时间都被花在了呆在图书馆上。

she has 是定语从句，修饰前面的time，不过省略的先行词that。
主句是her spare time is spent staying in the library.
完整的是her spare time that she has is spent staying in the library.

she has作time的定语,相当于定语从句,is spent是被动语态,时间自己不能渡过,得用被动语态.句子的意思是她的闲暇时间是在图书馆渡过的.

你好
应该这么断句：
Her spare time she has/ is spent staying in the library.
前段指 她所拥有的闲暇时间，后段指 都泡在了图书馆里
Her spare time she has=noun.
这句话也可以说成：
Her spare time is spent staying in the library.
be spent 是另一个，翻作：被花在
希望能帮到你~

这是个从句。her spare time she has 是个定语从句，she has 作为定语，翻译为：她的闲暇时光。这个从句在整个句子中充当主语。然后，这个句子是个被动语态的句子，is spent 被花费，原来的结构应该是spend time in doing sth，in可以省略。改成被动语态就是该句子的结构来。
整句翻译：她的闲暇时光都是呆在图书馆里渡过的。