beautiful的最高级：the most beautiful；比较级：more beautiful。

例句：

1、If it matched with the natural scence,it would be a most beautiful picture.

如果它和自然景色搭配起来,那一定是一幅最美丽的图画.

2、Between these pieces grew a most beautiful large white flower； so the swallow flew down withTiny, and placed her on one of the broad leaves.

不过在它们中间生出一朵最美丽的白色鲜花。 燕子带着拇指姑娘飞下来，把她放在它的一片宽阔的花瓣上面。

3、The young man looked at his heart, not perfect anymore but more beautiful than ever, since lovefrom the old man's heart flowed into his.

年轻人看着自己的心，看起来不再完美但比以前更美丽了，因为老人心中的爱也流淌到了他的心里。