形容词
中文翻译：坚硬的
同义词：
['stiff', 'inflexible', 'rigidly']
例句：
-
1. The metal is very rigid and cannot be bent easily.
这金属非常坚硬，不容易弯曲。
-
2. The new policy is rigid and will not be easily changed.
新政策严格，不会轻易改变。
-
3. The structure of the building is very rigid, making it difficult to modify.
建筑结构非常僵硬，难以修改。