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a. 无印痕的, 不留印痕的\\n[计] 无印痕的
✅ 同义词
🗣️ 情景例句
We have around 3,000 workers.
大约有3000名职工。
I really care for the students in my class.
我真喜欢人班上的学生。
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。