The English translation of “我的心因你而笑” is “My heart laughed因为你”. This phrase can be used to express the idea that the heart of the person speaking is smiling or laughing because of the person they are speaking to.

In Chinese, the phrase “我的心因你而笑” can also be translated as “My heart laughed因为你”. This phrase can also convey the same meaning, indicating that the heart of the person speaking is smiling or laughing because of the person they are speaking to.

Overall, the phrase “我的心因你而笑” can be used to express the feeling of joy, happiness, or laughter that因为你因为你 something or someone而感到.