Are you injured my heart 你伤我心了
They say it takes some training. And there can be risks, like running when your feet are too cold to feel if you get injured.
VOA: special.2010.02.03
Some form what are called megakaryocytes which become platelets, which are responsible for clotting, for forming a barrier if your circulatory system gets injured so you don't bleed.
还有一些类型的细胞称为巨核细胞,生成有凝血作用的血小板,在你的循环系统受损时形成止血屏障
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