Artists put five pieces of paper-cuttings together.
艺术家把五块剪纸放在一起。
I suggest you write four or five words a day on pieces of paper and place them in your room.
我建议你每天往纸上写四五个单词，并把它们放在你的房间里。
Through the observation and thinking in the teaching process of higher mathematics, this paper analyzes the existing problems in the course and puts forward five pieces of advice for the teaching.
通过对高等数学的教学过程中的观察和思考，分析了高等数学课程存在的问题，提出了五点对教学的思考。
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