2--Why are Anna and Jonathan talking about the temperature of produce? Cool as a cucumber
 
1--Did you watch the basketball game last night?
 
2--I did. I could not believe that player made a basket at the very last minute and WON the championship.
 
1--Talk about pressure! But he stayed cool.
 
2--Cool as a cucumber!
 
1--Cucumbers are naturally cool fruits, which is where this expression comes from.
 
2--"Cool as a cucumber" describes someone who is laid-back or who performs really well when the pressure is on.
 
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注解：
 
1.usually通常
2.championship冠军
3.pressure压力

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译文：

1--黄瓜是一种长的绿色果实，通常是生吃的。
2--为什么安娜和乔纳森会谈论黄瓜的温度呢？镇定自若
1--你看了昨晚的篮球比赛了吗？
2--看了。我简直不能相信那个运动员在最后一刻投篮得分，赢得了冠军。
1--压力肯定很大！但他依然保持冷静。
2--镇定自若！
1--黄瓜是天然的清凉水果，这个表达正源于此。
2--“镇定自若”用于描述闲散的人，或表现很好的人，通常在压力到来的情况下。