The monitor's curve turned into a straight line, emitting an alarm. The once rebellious younger sister rushed to the sickbed, no one could pull her away. Relatives supported the frail elderly couple, unable to stand steady. Doctors and nurses approached, the younger sister cried out desperately, trying to stop them from removing the intravenous tube and the monitor. The nurse sighed, reached out and removed the oxygen mask, pulling up the white bed sheet...,First, use enough patience to wait for the right time.,Thirdly, regardless of the enemy's strength, one must exert all their effort and fight with ruthlessness and bloodthirst when attacking.。