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How to get an eggshell that can be completely carved?
1. Take an egg and wash the shell.

2. Tie both ends of the egg with scissors or small nails to make it have a small hole.

3. Blow into one of the holes with your mouth. In this way, the egg white and yolk will soon flow out of another small hole.

4. The liquid object in the empty egg can be washed with water all the time, so that a relatively complete empty eggshell is ready.