46. By making friends who are different from ourselves, we can make up
for deficiency.
改进: By making friends who are different from ourselves, we can make
up
for our shortcomings.

47. A wrong decision will bring even worse fact.
改进: A wrong decision will bring even worse result.

48. You spend all your life to fulfill your willing.
改进: You devote all your life to the fulfillment of your dream.

49. Children should be taught disciplines in order to avoid
unnecessary lost.
改进: Children should be taught discipline in order to avoid
unnecessary loss.

50. I felt alone.
改进: I felt lonely.