eg: i'll go to luzhou if it does't rain 假如明天不下雨，我就去瀘州
if they change the plan they will let me know 假如他們要改變計畫，他們會讓我知道的
i'll go to england ,if i have enough money next year 如果我明年由足夠的錢，我就要去英國
147 in one's opinion = sb think 某人認為
148 in some ways 在某些方面
149 in the end = finally(adv) 最後
150 in the north of… 什麼在什麼的北方 （north 北 sowth 南 west 西 east 東 ）
151 in the sun 在太陽下
152 increase 增加
eg : they've increased the prece of petrol by 3% 他們把石油價增加了3%
the population has increased from 12 million ten years ago to 18 million now
153 instead of +（名 ） 代替
eg: i'd like an apple instead of a pear 我想要蘋果，而不要梨子
i like english instead of math 我喜歡英語而不喜歡數學
154 introduce sb to sb 介紹某人給某人 introduce oneself 自我介紹
155 invite sb to do sth 邀請某人做某事
156 it takes sb sometime to do sth 做某人花掉某人多少時間
eg : it took me 5 minutes to do my homework it takes me half an hour to cook
157 it's +adj +for sb to do sth 對某人來說做某事怎么樣
158 it's +adj +to do 做某事怎么樣
159 it's +adj for sb 對於某人來說怎么樣 it's +adj of sb 對某人來說太怎么樣
160 it's +adj(for sb) to do（對某人來說） 做某事怎么樣 it's +adj of sb to do sth 對某人來說做某事太怎么樣
eg : it's nice of you to help me with my english
161 it's a good idea for sb to do sth 對…… 來說是個好主意
162 it's important to sb 對某人來說很重要 eg: it's important to me
163 it's time to do sth it's time for sth 到了該去做某事的時間
eg : it's time to have class it's time for class 該去上課了
164 join = take part in 參加
165 just now 剛才
166 keep +sb /sth +adj /介詞短語 讓什麼保持什麼樣？
167 keep out 不讓 …… 進入
168 keep sb adj 讓……保持…… eg: i want to keep my mother happy keep healthy 保持健康
169 key to +名詞 表示：某物的鑰匙或某題的答案
170 key to… anser to … key 可以是答題或鑰匙
171 laugh at… 取笑…… eg : don't langh at others we langhed at the joke
172 learn by oneslfe 自學
173 learn from sb 向某人學習 eg: we should learn from lei feng
174 learn to do sth 學做某事