Crunchy foods have a hard texture and make a loud sound when chewed.

松脆的食物质地很硬，而且在咀嚼的时候会发出响声。

Both of these adjectives means that something has a hard texture when you bite into it.

这两个形容词的意思都是当你咬某个东西的时候，它有一种硬硬的口感。