花瓶稳稳地放在大理石底座上。

The vase was securely placed on the marble ___plinths.

这些大理石柱子的底部都有雕刻精美的基座。

The marble columns stand on beautifully carved ___plinths.

建筑的底部有一圈厚重的石制基座。

The building has thick stone ___plinths at its base.