用于正式的商业场合，通常来说，是用于严肃的场合，例如当发信人和收信人之间有商业纠纷或者冲突的时候。
Formal. Used in business correspondence when the topic of the letter is serious. Sometimes used if there is a conflict between the sender and the recipient.
美国人在被介绍给别人的时候并不总是握手。然而，在正式或商业场合，人们通常会握手。
People in the United States don't always shake hands when they are introduced to one another. However, in a formal or business situation people almost always shake hands.
餐饮服务专业学习在正式和不正式的场合供应食物。课课程包括食品，客户服务，商业数学等。
Food service majors prepare to serve food in both informal and formal environments. They learn about food, customer service, business math, and more.
餐饮服务专业学习在正式和不正式的场合供应食物。课课程包括食品，客户服务，商业数学等。
Food service majors prepare to serve food in both informal and formal environments. They learn about food, customer service, business math, and more.
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