十里画廊161 It's a good idea for sb to do sth 对…… 来说是个好主意
162 It's important to sb 对某人来说很重要 eg: It's important to me 163 It's time to do sth It's time for sth 到了该去做某事的时间 eg : It's time to have class It's time for class 该去上课了
164 join = take part in 参加
165 just now 刚才
166 keep +sb /sth +adj /介词短语 让什么保持什么样？
167 keep out 不让 …… 进入
168 keep sb adj 让……保持…… eg: I want to keep my mother happy keep healthy 保持健康
169 key to +名词 表示：某物的钥匙或某题的答案
170 key to… anser to … key 可以是答题或钥匙
171 laugh at… 取笑…… eg : Don't langh at others We langhed at the joke 172 learn by oneslfe 自学
173 learn from sb 向某人学习 eg: We should learn from Lei Feng 174 learn to do sth 学做某事
