You should cover the cut with a clean cloth.
你应该用干净的布覆盖在切口上。
You should cover the cut with a clean cloth and press it hard.
你应该用一块干净的布包扎伤口，并且压紧它。
For a simple cut, it is only necessary to wash the area of the cut, dry it and cover it with a piece of dry clean cloth.
对于简单的刀伤，只需将伤口冲洗后弄干，然后盖上清洁的干布即可。
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