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Well, I think your first issue/ˈɪʃuː/ 问题，关键点 here is that you think it's possible to accomplish/əˈkʌmplɪʃ/ 实现，达到constant/ˈkɒnstənt/ 持续的，恒常的 happiness, permanent/ˈpɜːmənənt/ 永久的，持久的 happiness. I got bad news/bæd njuːz/ 坏消息（口语中常用来委婉告知残酷真相） for you. That is impossible. In fact, happiness wouldn't exist/ɪɡˈzɪst/ 存在 without sadness. In life, all good things are good because there is a bad counterpart/ˈkaʊntəpɑːt/ 对应物，对立面. Sun only feels warm on our back because rain feels so cold, you know. Happiness only feels as good as/əz ɡʊd əz/ 和...一样好（同等程度比较） it feels because sadness feels as bad as/əz bæd əz/ 和...一样糟糕 it feels. So happiness cannot exist without sadness.
原句：Sun only feels warm because rain feels so cold.
📝 试一试：[X] only feels ________ because [Y] feels ________.
Example:
Rest only feels sweet because work feels so exhausting.
⑤ 同级比较因果句式
[A] feels as [adj] as it feels because [B] feels as [adj] as it feels
用as... as it feels对称地表达两种感受的等量对比，修辞效果强烈。
原句：Happiness only feels as good as it feels because sadness feels as bad as it feels.
📝 试一试：[A] feels as ________ as it feels because [B] feels as ________ as it feels.
Example:
Love feels as powerful as it feels because loss feels as devastating as it feels.
⑥ 条件否定结论句式
[X] cannot exist without [Y]
用cannot exist without强调绝对的条件依赖关系，语气比wouldn't更坚定。
原句：Happiness cannot exist without sadness.
📝 试一试：________ cannot exist without ________.
Example:
Freedom cannot exist without responsibility.
🎧 全文影子跟读（句1-1）
逐句学完后，跟着完整音频不暂停地进行影子跟读练习
Well, I think your first issue here is that you think it's possible to accomplish constant happiness, permanent happiness. I got bad news for you. That is impossible. In fact, happiness wouldn't exist without sadness. In life, all good things are good because there is a bad counterpart. Sun only feels warm on our back because rain feels so cold, you know. Happiness only feels as good as it feels because sadness feels as bad as it feels. So happiness cannot exist without sadness.