We exchanged addresses and Christmas cards...是什么意思？

We exchanged addresses and Christmas cards...

我们交换了地址和圣诞贺卡。

we

pron. 我们，咱们，笔者，本人，朕，人们；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

exchanged

v. 换回( exchange的过去式和过去分词 )，交换，替换，进行易货贸易，作物物交换，[金融业]（货币）交换，兑换；

例句
We exchanged addresses and Christmas cards...
我们交换了地址和圣诞贺卡。

addresses

n. 称呼( address的名词复数 )，（在信封、包裹等上）书写（收件人姓名、地址），（收件人的）姓名和地址，（书面或口头的）发言；

例句
Internet addresses are also known as URLs.
网址也被称作URL。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

Christmas

n. 圣诞节；

例句
It was a Christmas when shoppers passed by expensive silks in favor of more practical gifts.
这是一个购物者不理会昂贵的丝绸衣服而热衷于更实用礼物的圣诞节。

cards

n. 卡（ card的名词复数 ），纸牌，贺卡，信用卡；

例句
The smart ones will have already bagged their seats by placing cards on them.
聪明人早已在座位上放一张卡片占住了位子。