What is the idiom to describe "I feel very relaxed and happy like putting down a heavy burden"?

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An idiom that means "I feel very relaxed and happy as if I had put down a heavy burden": I feel relieved.

It seems that a heavy burden has been unloaded.

Pinyin: rúshòzhòngò

Interpretation: release: put down; A heavy burden: a heavy burden. As easy as letting go of a heavy burden. Describe the relaxation and happiness after the tension has passed.

From: "_ Twenty-nine years of Liang Gong": "Zhao Gong ran away; The people are relieved. "

Synonym: Go into battle lightly, with ease.

Antonym: Like an ox carrying a heavy burden, the heavy responsibility is on the shoulder, and Mount Tai is at the top.