Everybody on the spot was deeply touched by the bravery of the young girl who took off her only blouse, _____ the burns and ______ the mouth-to-mouth method to save the man who was in a coma(昏迷) because of a bad electric shock.
An appropriate amount of temporary pressure can ______ a kind of motivation to do something well, but once it becomes constant or permanent, psychological problems are likely to _______.