坚固

坚固

Solid; sturdy; strong.

In this sentence, '坚固' is used as an adjective to describe the physical robustness and strength of the bridge.

这座桥非常坚固，能够承受很大的重量。

This bridge is very sturdy and can bear a lot of weight.

Here, '坚固' metaphorically describes the unwavering and strong nature of the belief.

他有一个坚固的信念，不会轻易改变。

He has a firm belief that will not change easily.

'坚固' in this sentence is used to describe the reliability and effectiveness of the strategy.

我们需要一个坚固的策略来应对这些挑战。

We need a solid strategy to tackle these challenges.