The first combination of drugs that a person is given is called first line therapy.

病人最开始使用的药物组合被称为一线治疗。

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In this case, context is a combination of parameters (such as tenant, line of business, geographical location, and so on) that decides the business operation and usage environment of the application.

在这个示例中，上下文是决定应用程序的业务操作和使用环境的参数组合(如承租者、业务部门、地理位置，等等)。

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But you don't know whether the words are separated by Spaces, line breaks, tabs, or some combination of these.

但您不知道单词由什么分隔，是空格、换行符、制表符还是这些字符的组合。

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The Germans,by a remarkable combination of air bombing and heavily armored tanks, have broken through the French defenses north of the Maginot Line, and strong columns of their armored vehicles are ravaging the open country, which for the first day or two was without defenders.

VOA: special.2011.05.12

In fact, in 2004 the American College of Obstetricians and Gynecologists issued guidelines calling the combination a first-line therapy.

NPR: FDA Approves Return Of Drug For Morning Sickness

The combination of an undesirable product line, massive debt hangover and unions that wanted the company to make good on its promises, ultimately killed the company.

FORBES: Move up http://i.forbesimg.com t Move down

However, the Czechs were soon back in command and coming closer to a breakthrough, with McGregor gathering on the line after a combination of Hubnik and Gary Caldwell diverted a cross into the six-yard box towards goal.

BBC: Czech Republic 1-0 Scotland