
We used to love each other,at the thought of which my heart breaks.
我们曾相爱,想到就心酸。

Does not belong to me, I will let go 。
不属于我的,我会离开 。

Memories can make you smile, but it can very well make you cry hard.
回忆,有时令你嘴角上扬,有时也能让你潸然泪下

As for my tiny heart, you mean the whole world.
对于我渺小的心脏来说,你代表着我整个世界。