52. write to sb. 写信给sb

53. get enough sleep 睡眠充足;stay happy 保持心情开朗

54. on time 准时;in time 按时

55. sb had better (not) do sth， sb 最好(别)做sth

56. land on …登陆

57. pull…out of..=pull…up from…拉上来

58. 不定代词：something/anyonebody/everywhere等

59. we’re all by ourselves=we’re alone.单独，独自

60. feel a little afraid/don’t be afraid. 有点害怕/别害怕

61. perhaps=maybe也许，可能

62. not …until… 直到…才…

63. sooner or later 迟早，早晚

64. ran after追//ran to …向..跑去// ran away 逃跑了

65. eat up 吃光// use up 用完

66. take (good) care of ..=look after…照顾，保管

67. 我自学英语learn English by myself= teach myself English

68. learn to do sth 学会…

69. 记日记 keep a diary，写日记 write a diary

70. leave sb by oneself 单独留下sb

71. join in the League/Party 入团/党