Every puzzle, trick, and project can be executed with safe, inexpensive materials found around the home and the lively step-by-step instructions make each activity easy to follow.

每一个谜题，把戏和题目都可以在家庭中安全重现，材料廉价，指示清晰，每个活动都容易操作。

youdao

Every puzzle, trick, and project can be executed with safe, inexpensive materials found around the home and the lively step-by-step instructions make each activity easy to follow.

每一个谜题，把戏和题目都可以在家庭中安全重现，材料廉价，指示清晰，每个活动都容易操作。

youdao