But the difficulty is that by the time children reach school age, there are so many other influences that it is almost impossible to tell whether girls are worse at science and maths, or whether they've been brought up to think of these subjects as b

But the difficulty is that by the time children reach school age, there are so many other influences that it is almost impossible to tell whether girls are worse at science and maths, or whether they've been brought up to think of these subjects as b
But the difficulty is that by the time children reach school age, there are so many other influences that it is almost impossible to tell whether girls are worse at science and maths, or whether they've been brought up to think of these subjects as
boys' terrttory.
请帮忙分析一下句子结构!详细点!中英文双语更好!谢谢!

But the difficulty is that by the time children reach school age, there are so many other influences that it is almost impossible to tell whether girls are worse at science and maths, or whether they've been brought up to think of these subjects as b
第一个that引导的从句是表语从句,第二个that引导的从句是定语从句,修饰先行词influences．定语从句中的it是形式主语,to tell...是真正的主语 ,tell的宾语是两个whether引导的从句．
这个句子太长了呵．翻译就不必了,理清了句子结构自己翻译应该会了吧．

But the difficulty is that by the time children reach school age, there are so many other influences that it is almost impossible to tell whether girls are worse at science and maths, or whether they'...

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But the difficulty is that by the time children reach school age, there are so many other influences that it is almost impossible to tell whether girls are worse at science and maths, or whether they've been brought up to think of these subjects as boys' terrttory.
难就难在当孩子们长大到入学年龄的时候,太多的干扰因素使得人们很难道出是否女孩子(天生)就理科差还是在她们的成长过程中潜移默化的认为理科就应当是男孩子的天下.

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但难题在于在孩子到入学年龄前,就有如此多的其他影响因素,以至于几乎不可能分辨到底女孩子是真的比较不擅长科学和数学,还是因为她们从小就被灌输"这些科目是男孩的领域"的思想.
主语-the difficulty
谓语-is
宾语-that it is almost impossible to tell whether girls are worse at science an...

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但难题在于在孩子到入学年龄前,就有如此多的其他影响因素,以至于几乎不可能分辨到底女孩子是真的比较不擅长科学和数学,还是因为她们从小就被灌输"这些科目是男孩的领域"的思想.
主语-the difficulty
谓语-is
宾语-that it is almost impossible to tell whether girls are worse at science and maths, or whether they've been brought up to think of these subjects as
boys' terrttory.

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But the difficulty is that by the time children reach school age, there are so many other influences that it is almost impossible to tell whether girls are worse at science and maths, or whether they'...

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But the difficulty is that by the time children reach school age, there are so many other influences that it is almost impossible to tell whether girls are worse at science and maths, or whether they've been brought up to think of these subjects as
boys' territtory.
But the difficulty 作句子主语，
that引起一个表语从句，
by the time children reach school age做that表语从句的时间状语，
there are so many other influences that it is almost impossible to tell ，that表语从句中的there be 句型，句型中使用了固定用法so...that，
whether girls are worse at science and maths, or whether they've been brought up to think of these subjects as boys' terrttory. 这两个是名词从句，在这里做to tell 的宾语。
整个句子的意思是：
但是困难在于：到了孩子们上学的年级时，会有太多的影响以至于不可能说到底女孩是在数学和科学方面较弱，还是她们被抚养长大的方式让她们觉得那些科目就是男孩们的领域。

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