形容词
中文翻译：Unknown
同义词：
['slow', 'sluggish', 'impeded']
例句：
-
1.The child is retarded in his speech development.
这个孩子在语言发展上有所迟缓。
-
2. The team's performance was retarded by the lack of practice.
由于缺乏练习，团队的表现受到了影响。
-
3.The project was retarded due to budget constraints.
由于预算限制，该项目进展缓慢。