Unascertainable
a. 无法查明的,不能确定的
✅ 同义词
🔴 反义词
🗣️ 情景例句
Do you have any assurance for its quality?
你们有任何品质保证吗？
Did you phone him yourself?
你自己亲自打电话给他吗？
The first essential in elephant training is to assign to the animal a single mahout who will be entirely responsible for the job.
驯象中至关重要的是指派一名专门的驯象员，全面负责这项工作。