对待老人我们必须要有礼貌。
We must be polite, above all, to old people.
我们要有礼貌，尤其是对老年人。
Well, as he is Mr Bingley's friend, we must be polite to him, but I must say, I hate the sight of him.
哎呀，他既然是彬格莱先生的朋友，我们也要客气点儿，可是，我得承认，我不喜欢见到他。
We stipulate that our salesgirl must be polite to customer.
我们规定我们的售货小姐必须礼貌待客。
We stipulate that our salesgirl must be polite to customer.
我们规定我们的售货小姐必须礼貌待客。
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