switch/开关

This book uses cleverly designed interactive mechanisms such as push-pull and flip-up mechanisms to showcase various "switches." It helps children understand the concepts of on and off, and also depicts everyday scenes of children playing, eating, and using the toilet at home, full of childlike fun and a sense of life.

本书通过推拉、翻翻等设计巧妙的互动小机关，展示了各种各样的“开关”。可以帮助孩子认识开和关的概念，还展示了孩子在家里玩耍、吃东西、上厕所等日常生活场景，充满童趣和生活气息。