You are viewing a single comment's thread from:RE: 带孩子做科学实验系列之: 用洗涤灵驱动的小船 (Soap powered boat)View the full contextshengui (58)in #cn • 7 years ago 真好,这样孩子一定很有兴趣!
我家孩子们每天都盼着做实验。