苯的硝化反应方程式:请给我讲讲be used to doing/be used to do的区别

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请给我讲讲be used to doing/be used to do的区别 谢谢

be used to doing表示习惯于作某事,而后者表示过去常常做某事

请给我讲讲be used to doing/be used to do的区别 used to be 是什么意思 there used to be used to be used to be be used to,used to的区别 used to do,be used to do,used to doing,be used to doing的区别 be used to doing sth? 谁能帮我讲讲use to do use to doing used to do 的用法? get/be used to doing used to do /be used to do的区别