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我想为你做点什么，以回报你所有的帮助。

I'd like to do something for you ___in return for all your help.

公司根据客户反馈做出了这些改变。

The company made these changes ___in response to customer feedback.

为回应您的广告，我写信申请该职位。

___In response to your advertisement, I am writing to apply for the position.