英语学习笔记：

lucky dog 幸运的人
cat and dog life 争吵不休的生活
packed like sardines 非常拥挤，水泄不通
to bell the cat 敢于自告奋勇

You are a tiger for work.
你工作起来充满着干劲。
Every dog has his day.
人人皆有得意的时候。
My sister I lived a cat-and-dog life when we were growing up.
我和我妹从小一起长大，也吵个不停。
The subway was full. The passengers were packed like sardines.
地铁人都塞满了。乘客们都挤的水泄不通了。
Whenever we are faced with difficulties, he is always the one who offers to bell the cat.
每当我们面临困难的时候，他总是那个自告奋勇，承担风险的人。

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