天塌下我撑着雨落下我打伞
[tiān tā xià wŏ chēng zhe yŭ luò xià wŏ dă săn]
'If the sky falls, I'll hold it up; if it rains, I'll open an umbrella for you.' It signifies readiness and determination to protect someone special through thick and thin, showcasing a caring and protective side of the user.