名词
中文翻译：持续的等级
同义词：
['persistent grade', 'enduring grade']
例句：
-
1.The student's performance has been sustained throughout the semester.
学生在整个学期的表现一直很稳定。
-
2. The company's growth has been sustained by its innovative products.
公司的成长得益于其创新的产品。
-
3. The project's success is sustained by a strong team and clear goals.
项目的成功率取决于一个强大的团队和明确的目标。