It depends on what you want to accomplish

回答: 怎样礼貌的表达不满?IT土人2011-03-31 05:33:03

If you want to get the job done and make EVERYBODY like you just as before, it's going to be very difficult.

I would just make a list of the things that didn't reach your standard using the words that are polite (that' what 礼貌 means) and expect somebody will be upset.

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