重点讲解：
1. be related to
相关；有关联；
eg. It's always been clear that their intense reactions have been directly related to their emotional wiring.
有一点总是显而易见，他们强烈的反应与他们的情绪极限直接相关。
eg. It may also be related to childhood.
它也有可能跟童年有关。
2. add to
添加；增加；掺加；
eg. If the tea is too strong, add some hot water to it.
如果茶太浓,加点开水。
eg. His comments are bound to add fuel to the debate.
他的话必将为争论推波助澜。
3. have a good time
过得愉快，玩得痛快；
eg. I hope you have a good time on Christmas Day.
祝你圣诞节玩得开心。
eg. I'm sure we'll have a good time.
我相信我们会很开心的。
