Blood donation does more good than harm, so it should be encouraged under scientific instructions.

献血利大于弊，因此应该在科学指导下鼓励人们献血。

Traditional blood donation is great.

传统的献血者固然是值得称道的。

Blood donation is what symbolizes a healthy citizen.

无偿献血——健康公民的标志。

More and more countries are moving towards voluntary blood donation.

越来越多的国家正在朝着自愿献血前进。

Of the 124 countries, 49 have reached 100% unpaid voluntary blood donation.

在124个国家中，有49个已做到100%无偿自愿献血。