While blood is being donated you should keep your veins astrain. This is achieved by kneading an expander in both of your hands.
当献血的时候，你应当保持你的经脉扩张，这可以通过揉捏手里的扩张器达到。
While blood is being donated you should keep your veins astrain. This is achieved by kneading an expander in both of your hands.
当献血的时候，你应当保持你的经脉扩张，这可以通过揉捏手里的扩张器达到。
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