It is not because the government has the power, but that it has the obligation to ensure the country’s sustainable development.
请教老师，not because… but that… 不是……而是……的使用方法对吗？和它近似的句型是 not because … but because…，两者也可以互换。 此句中but 是连词。
是如此吗？谢谢老师。
刘老师总结得非常不错。not because...but because= not that...but that =not because ...but that。
新课标高中英语《必学四》Unit 3中有如此一个句子：Not that Charlie’s own life was easy! 句中的not that“并非……；倒不是……”，是一个容易见到的省略句式，其完整形式是“It is not that Charlie’s own life was easy!”，that引导表语从句。在实质运用中，后面还常接“but that...”，but后的that可以省略。比如：
Not thatyour cell-phone is out of work,but its out of power. 你的手机并非坏了，而是没电了。
Not thathe didn’t hear you,but he wouldnt answer you. 他不是没听见，而是不想回答你。
▲ not that..., but that也常表示缘由（=not because..., but because）。比如：
I didn’t accompany you to the Great Wall,notthatI was unwillingbut thatI was busy. 我没陪你去长城，不是由于我不想，而是由于我非常忙。