天塌下来记住有我陪你
[tiān tā xià lái jì zhù yŏu wŏ péi nĭ]
It translates as 'If the sky falls, remember I will always be there by your side.' It implies unconditional support and loyalty to a close companion in tough times, emphasizing reliability in a relationship, friendship or kinship, it's an expression of undying commitment.