(1) His purpose remains as firm as a rock.

(2) Our friendship is as firm as a rock.

(3) The solidarity among China's various nationalities is as firm as a rock.

(4) China-Pakistan relations are as firm as a rock and have withstood the tests of time.

(5) There are neither difficulties insurmountable nor fortress unconquerable for them as long as they remain united as firm as a rock around the great Party.

(6) From Cui Hao and free verse flowed from eternal charm, let Yellow Crane Tower stand as firm as a rock in a Chinese scholar.

(7) He pointed out China-Pakistan friendship is deeply rooted in the hearts of the people, and as firm as a rock. Bilateral relations have withstood the tests of time and became even stronger.