本公司为个体私营企业，从事贸易，服务等行业的经营。

The Company is an individual and private enterprises engaged in trade, business services industries.

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通过技能培训，为我们提供了从事贸易必要的知识和工作能力。

Through skills training, we have engaged in trade with the necessary knowledge and the ability to work.

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白金汉宫表示，安德鲁王子仍将从事贸易活动，保证皇室成员的正常活动。

Buckingham Palace said Prince Andrew would still undertake trade engagements in keeping with normal practice by members of the royal family.

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By the 1830s,1840s, there were over 100 men in Charleston, South Carolina alone, making their livings full-time as slave traders.

到了十九世纪三四十年代,仅仅在南卡罗来纳的查尔斯顿地区,就有超过一百个,专职从事奴隶贸易的奴隶交易商

耶鲁公开课 - 美国内战与重建课程节选