51. the more ， the better 越多越好
52. all ones life 一生
53. as soon as 一就 as soon as possible尽可能早地、尽快as well = too也， as much as至多， as little as至少 ， regard as 把当作 ， as if 好像
54. no matter 无论
55 ever since 从那以后，此后一直
56.so far 到目前为止 ， or so大约
57. another two hours (=two more hours )又(再) 2个小时
58. three times a week一周三次
59. the number of的数量 a (large / good) number of / large numbers of / many许多
60.less than少于 ， less and less 越来越少
61.is another way of saying什么是..的另一说法 Quick is another way of saying fast. Bike is short for bicycle.
62. notuntil直到才
63.be like像 ， feel like +n./V-ing想要 ， like best最喜欢 ， would like to 想要
64.the 24 hour clock 24小时制
65.wash away冲走，run away逃跑 ， take away带走
66.before long不久 ， long before / ago很久以前 ， for long =for a long time长期， no longer = not. .any longer不再
67.more or less = about或多或少，大约more than = over多于，超过
68.every year每年 ， every four years每隔四年 ， every other day每隔一天 ， everyday English / life日常英语/生活
69. next to紧挨着， next door隔壁，邻居 ， next year明年 ， next time下次
70.receive / get / have a letter from sb. = hear from sb 收到某人的来信
71.on show = on display展览
72.be filled with / be full of充满
73. thank to =because of由于
74.some day =one day(将来)某一天 ， all day终日， day and night 日日夜夜 ， in a day or two一两天内 in the old days从前，旧社会， from day to day (day after day)日复一日 ， the day before yesterday前天 ， the day after tomorrow后天， Tree Planting Day植树节 ， Womens Day 妇女节
75. keep / stop / prevent (from) doing sth.防止(阻止)做某事 ， stop to do sth.停下来去做某事 ， stop doing sth.停止做某事