他们知道，根据关闭的网站的统计数据和销售，即四分之一的顾客会购买他们的产品或“转换”，因为它通常称为。
They know, based off of web site statistics and sales, that one in four customers will buy their product or "convert" as it is commonly referred to.
这种病毒通常被称为猪流感病毒，因为它包含一些来自猪的遗传物质。
The virus is commonly called swine flu because it contains some genetic material from pigs.
了解并控制血压：高血压通常被称为“无声杀手”，因为它没有任何的警示信号和患病症状。
KNOW AND CONTROL blood pressure: High blood pressure is often called a "silent killer" because it has no warning signs or symptoms.
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