心里空空的只装的下你心里满满的可是只有你
[xīn lĭ kōng kōng de zhĭ zhuāng de xià nĭ xīn lĭ măn măn de kĕ shì zhĭ yŏu nĭ]
'My heart, which was empty, can now only contain you; My heart, though full, has only you in it.' It poetically expresses the deep affection and all-encompassing love for someone, indicating that they are the sole inhabitant of the person's heart.