She changed his bedding, helped clean his wounds, and managed his medication.
她为他更换寝具，帮他清理伤口，以及照管他的药物治疗。
Cold plasma, a combination of oxygen and helium gas concentrated into a lightening-like beam, has previously been used by medics to clean bacteria off wounds.
冷等离子，是由氧气和氦气混合集中成的光束，先前主要在医疗上用来清除伤口的细菌。
清理伤口。
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