英语六级-写作锦囊关键句483. It is no simple task to give the reason for

483. It is no simple task to give the reason for this complicated phenomenon which involves many factors.

译文　这一复杂的现象包含了很多方面，要想对其进行解释并非易事。

点睛　本句型是说明文或者图表文中用来引导详细分析的句型，通常在文章中间部分使用。complicated意为“复杂的”。phenomenon意为“现象”，它的复数形式为phenomena。

本句型可以直接在文章中使用，也可以将phenomenon替换成matter、issue等词，含义不变。

句型拓展

It is not a simple task to give the reason for this complicated phenomenon which involves many factors. 这一复杂的现象包含了很多方面，要想对其成因进行解释并非易事。

It is no simple task to analyze this complicated phenomenon which involves many factors. 这一复杂的现象包含了很多方面，要想对其进行分析并非易事。