52. powerful　 =　 strong 　强有力的　 eg. A tiger is powerful　 =　 A tiger is strong.

51. solve the problem　 =　 find an answer to the problem　　 解决

　 eg. It’s not easy to solve the problem. =　 It’s no easy to find an answer to the problem.

50. represent　 =　 mean　 =　 stand for　 代表　

eg. Smiles represent happiness.　 =　 Smiles mean happiness.

49. an amazing picture　 =　 a surprising picture　　 令人惊奇的　

eg. It’s an amazing picture. =　 It’s a surprising picture.

To one’s surprise令某人惊奇的　　 be surprised to 对什么感到惊奇

48. accurate　 =　 correct　　 正确的　 eg. The answer is accurate. =　 The answer is correct.

47. without water　 =　 if there is no water　 没有…　

eg. Fish will die without water.　 =　 Fish will die if there is no water.

Chapter 4

46. without his help　 =　 if he didn’t help me.　 没有…

　 eg. I won’t finish it without your help. =　 I won’t finish it if you don’t help me.

45. take a ferry to Hong Kong　 =　 go to Hong Kong by ferry　 乘渡轮去

　 eg. They usually take a ferry to Hong Kong. = They usually go to Hong Kong by ferry.

44. don’t know anything　 =　 know nothing　　 一无所知　

eg. I don’t know anything.　 =　 I know nothing.

43. Show me a book　 =　 Show a book to me　　 出示某物给某人看