我姓许却只想许你一身白纱
[wŏ xìng xŭ què zhĭ xiăng xŭ nĭ yī shēn bái shā]
My last name is Xu, but all I want is to marry you (literally, 'Xu' sounds like 'to vow/promised' in Chinese). This implies a deep affection for someone and a desire to marry them, as white gown represents purity and weddings in Western culture.