这堵墙的坚固性经受住了地震的考验。

The ___solidity of this wall stood the test of the earthquake.

他的建议很有分量，因为他的行业经验给了他的观点可靠性。

His advice carries ___solidity thanks to his years of industry experience.

混凝土墙的坚固性让人感觉非常安全。

The ___solidity of the concrete wall makes it feel very secure.