一、 business and businesses 商业和公司
　　A business, company, or firm is an organization that sells goods or services .A business may also be referred to formally as a concern. Business is the production, buying, and selling of goods and services.
　　A business may be referred to approvingly as an enterprise to emphasize its adventurous, risk-taking qualities, and business in general may be referred to in the same way, for example in combinations such as free enterprise and private enterprise.
　　Business is also referred to as commerce. This word, and its related adjective commercial, are often used to distinguish the business sphere from other areas such as government or the arts, or to distinguish it from non-money-making activities.
注释：
Business 商业；生意；公司 Company 公司；商号
Firm (合伙的)商号；商行 Concern 康采恩（垄断企业形式之一）
Commerce 商业； 商务 Commercial 商业的；商务的；商用的
Enterprise 企事业单位 Free Enterprise 自由企业
Private Enterprise 私人企业