If there are no severe lacerations, apply direct pressure on the wound with thumb and/or fingers to help slow the flow of blood so that clots can form.
如果没有严重的伤口，那么用拇指或者手指压在伤口处来减缓血流的速度，这样血就能凝固了。
2
Sometimes the swollen ends can be moved by thumbpressure (soft swells); in other cases the gas pressure is so great that the ends cannot be dented by hand (hard swells).