名词
中文翻译：三级的
同义词：
['three-tiered', 'three-fold', 'threefold']
例句：
-
1.The company has a three-level management structure.
该公司有三级管理结构。
-
2. This product is designed for three-level protection.
该产品设计用于三级防护。
-
3. The project involves three-level collaboration between the government and the private sector.
该项目涉及政府与私营部门之间的三级合作。