词典释义：
a chivalrous, courteous, or honourable man
彬彬有礼的人，有教养的人，绅士
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he behaved throughout like a perfect gentleman .他自始至终表现得像个完美的绅士。
a man of good social position, especially one of wealth and leisure
有身份的人，尤指有钱又有闲的人。
a man of noble birth attached to a royal household
出生高贵的人，与王室有亲缘关系的人
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a Gentleman of the Bedchamber .君主内宫侍臣。
a polite or formal way of referring to a man
［对 男子的礼貌称呼］ 先生
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opposite her an old gentleman sat reading .在她对面有一位老先生坐在那里看书。
(
［对 数名男子的礼貌称呼］ 先生们
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‘Can I help you, gentlemen?’ “先生们，要我帮忙吗？”
used as a courteous designation for a male fellow member of the House of Commons or the House of Representatives
[对下议院或众议院男性议员同僚的礼貌称呼]
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the Right Honourable Gentleman opposite .（坐在我）对面的议员阁下。
"Middle English （in the sense ‘man of noble birth’）： from
