在美国及西方发达国家盛行至今，成为各大企业重要的广告宣传载体。
In the United States and western developed countries, prevails till now becomes each big enterprise important advertisement carrier.
自那时以来，这一天已成为一个载体，启动国家和区域认识和宣传活动，以鼓励献血和更安全的输血方法。
Since then, the Day has become a vehicle to launch national and regional awareness and advocacy campaigns to encourage blood donation and safer practices in blood transfusion.
博客—博客可以是时事通讯、公告机制和宣传项目的载体，但它们很复杂，因此常常被忽略了。
Blogs - Blogs can be newsletters, announcement mechanisms, and vehicles for evangelizing your project, but they are a lot of work and so are often neglected.
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