总结来说，offer to do offer doing两个不同的短语，它们语法用法和含义上也有一定的差异。offer to do …
Offer to do so at a low price in order to establish some credibility. 开始时开价要低,以便建立好信誉. …
offer somethingOffer something = offering an object Offer to do something = offering an …
首先offer的固定搭配有：offer sth. / offer sb. sth. / offer sth. to sb. 而provide的固定搭配有：provide …
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