Smoking has been banned outdoors as well as in, with enforcement by polite requests.

出于礼节要求，室内外都禁止吸烟。

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Make polite requests and responses;

有礼貌地提出请求及回答；

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In this two-part Business English Podcast series, we will be looking at the vocabulary used when traveling by air, and proper and polite forms of making and answering requests.

在两部分的商务播客系列中，我们会看下乘飞机旅行时用到的词汇以及进行得体的，礼貌的询问和回答。

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But, according to Eritrea, militiamen from the border province of Tigray persistently encroached on Eritrean territory, ignoring polite requests to withdraw.

ECONOMIST: Ethiopia and Eritrea: Why are they fighting? | The

The removal of content usually involves polite take-down requests that occasionally escalate into cease-and-desist letters and legal threats when necessary, says the company's chief executive, Michael Fertik.

FORBES: Google-Proof PR?