关于“这首歌好吗”的英语表达，综合多个来源的信息，可以总结如下：
一、常用表达方式
- It's a good song.
- This song is catchy.
- This song is really nice.
强调感受类
- It really moves me.
- It has a beautiful melody.
- I can't stop listening to it.
二、补充说明
catchy： 强调旋律易记、吸引力强，如： "The chorus of this song is really catchy." nice
"This song is really nice. I told him it was wonderful."
moving：突出情感共鸣，如：
"This song really moves me to tears."
建议根据具体语境选择表达，若强调旋律可记忆，用"catchy"；若侧重情感共鸣，用"moving"；若只是简单评价，"good"或"nice"即可。
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