请先听一遍，再看原文；请尽量模仿原声复述，最后做口语练习。
1. The man’s directions were crystal clear and we arrived at the station early.
2. Mum made it crystal clear that we wouldn’t be going to the party.
3. So in those examples, ‘crystal clear’ was used to mean extremely clear or easy to understand.
译文：
1. 那个人给个方向非常清楚，我们早到了车站。
2. 妈妈说得很清楚，我们不会去参加那个聚会。
3. 在那些句子中，’crystal clear’ 指的是非常清楚，或很容易理解。
crystal = 水晶
crystal clear = as clear as crystal 非常清楚，很容易理解，很清澈透明的
口语练习：
My mum always cleans the window glass until it is crystal clear every Sunday.
My parents made it crystal clear that we should come home by 11pm.
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