1. 语义强度差异
required体现基础性要求(中性义务)
- 如课程学分:English composition is required for graduation
- 技术标准:minimum required RAM is 8GB
mandatory强调强制约束力(法律/制度层面)
- 法律场景:mandatory sentencing for drug offenses
- 公共卫生:mandatory quarantine for close contacts
2. 语体特征对比
required适用于多语域:
- 学术场景(required reading)
- 职场文 ...(以上内容有节略,please sign in for more)